The Wolf roams

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WhiteWolf
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Re: The Wolf roams

Post by WhiteWolf » Wed Jun 21, 2017 12:42 am

I forgot to add..

The car starts straight away with the maf unplugged.. Dies when I rev it
.
Also when the revs are going up to the turbo gauge moves up

Also when having the misfiring the fuel gauge was giving wild readings.
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

jifflemon
480 Is my middle name
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Re: The Wolf roams

Post by jifflemon » Wed Jun 21, 2017 10:34 am

WhiteWolf wrote:I forgot to add..

The car starts straight away with the maf unplugged.. Dies when I rev it
.
Also when the revs are going up to the turbo gauge moves up

Also when having the misfiring the fuel gauge was giving wild readings.
The turbo gauge moving with revs sounds ..... interesting. That would imply your making boost at idle!

But then the fuel gauge mid-reading sounds like electrical problems.

No pipework off anywhere?

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Wed Jun 21, 2017 5:43 pm

I didnt think anything of the gauge rising as it does when I rev it in neutral..
I didnt think I had any damaged pipework, not on the top half of the engine anyway..

I decided to strip the pipework as I had to get to the cranksensor.. As I took the airbox and maf off I could see a split in the pipe that goes into the turbo.. Its the big one below the dumpvalve.. It connects to the turbo..
I decided to put back the clean cranksensor, connect the maf and try and start it.. Within the second turning of the engine it started. This was a problem for sure.. It started then died, even with revs.. I unplugged the maf and it started straight away although wouldnt rev foot down.. I had to gently push the accelerator..

So I stripped the maf and pipework to get to the pipe that was split. I temporaraly superglued and tapped it and replaced the maf etc.. Turned it over it started then died.. I can really smell fuel bad.. I managed to drive it around the block without the maf plugged in.. slight revs having to change gear at 2000rpm or it starts stuttering..

I have a feeling the maf has died.. With it plugged in the revs go up and down.. unplugged it idles good but stalls if I accelerate quick..
I will try and find a way to test the maf.. Its and expensive part and I dont want to throw bits at it that it doesnt need..

Any suggestions very welcome..

To be continued....
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Thu Jun 22, 2017 9:44 am

Anyone know how to test a maf with a multimetre.. I thought the car would go into a limp mode with it unplugged.. Mine barely drives with it unplugged.. Plugged in its undriveable. Dies when I try to rev it.
Does unplugging the Maf bypass some other sensors??

When I warmed her up and drove her around the block for 5 mins I couldnt get the mpg above 15mpg. Normally its twice that..

I will have another play today.. I will take the distributor off and inspect it..

To be continued....
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Thu Jun 22, 2017 4:34 pm

I was going to take the dizzy of but instead managed to snap my oil breather assembly off. Ive blocked the inlet pipe and also the pipe that goes to the turbo.. Great news....
I was doing this as I was trying to get to the sensor behind it.. Under the spark plug nearest the distributor. Anyway I unplugged it and I tried to start her. It started straight away and I could rev it as well... This with everything else connected.. I tried to drive it away.. This time the symptoms were reversed. I could pull away with full revs not light revs.. It would stall though trying to go up a hill. In fact it stalled a few times..
With this sensor disconnected I unplugged the maf and tried to rev it. It wouldnt have it.. So I presume it works??

Amazingly I had another temp sensor in my box.. I replaced it and it hasnt fixed it.. It nearly dies with it plugged in. I unplug it and it picks up..

Getting sick of this to be honest..

To be continued....
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Fri Jun 23, 2017 2:54 pm

:wall:
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Fri Jun 23, 2017 5:42 pm

Earlier I took the spark plugs out and inspected them. They were as black as can be.. I gave them a wipe and put them back in. Ive taken the distributor off and inspected it.. There was major buildup of reddish substance on the legs in the cap.. I put my old cap back on to see if there was any difference.. Still the same symptoms.. Although it revved crisper..
It only runs without the engine temperature sensor plugged in.. It will start and rev without it attached.. If I unplug the Maf it wont wont rev... Once the engine warms up though it starts hunting..
If I try to pull off it will just start stuttering....

To my knowledge I have no air leaks.. The turbo gauge sits at -14 unless revved..

The engine temp sensor I used to replace the old one was also used.. I could have two broken sensors...

When the car was warm it wouldnt even run with the engine temperature sensor plugged in.. I unplugged it and it started straight away...

This car might have to be sorn.. The tax, mot and insurance are due in the next month and a half...

Hopefully to be continued.....
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Fri Jun 23, 2017 8:44 pm

Grrrrrrrrrrrrrrr.....


Ive just been out to unplug and check the wires etc.. Nothing amiss that I could see..

I tried to start her like before with the engine temperature sensor unplugged.. It started then died even with revs.. I tried a few times, nothing...
I then plugged the sensor in and tried, nothing...
I then unplugged the maf and it started and continued to run at 1000rpm, tried to rev it and it died..

Why o why does it keep doing the exact opposite!!!

Ive ordered another multimetre from fleabay to go through all the sensors..

To be continued...
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Sun Jun 25, 2017 6:48 pm

I have not tried to start the car again due to the fact I dont want to damage the windscreen :wall

I have done some good reading of the Haynes manual and have all the resistances of the sensors..

I still dont know how to test the Maf though...
I will go through all the ignition as well..

I will be glad when its running again.. I wonder how long that rip was in the turbo intake pipe was there for.. That would have made the car cut back the ignition for sure...

To be continued...
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Wed Jun 28, 2017 12:08 pm

I managed to borrow a multimetre yesterday and sat there testing the wrong ecu...
I then took the ignition ecu out of the centre console..

I stripped back the wires and proceeded to test the various sensors..
Coolant sensor was at 3100ohms... Supposed to be 2500ohm at 20º.. It was colder than that. I tested it again this morning and it was 3400ohms as it was colder...
So I suppose thats in order then..
Throttle switch was ok 0ohms depressed pedal.. 1300ohms pedal pressed...
Boost solenoid valve was 31ohms.. correct value 30ohms
Crankcase sensor was 221ohms which is correct.. correct value 220 +\- 60
Battery was 13.3v

Tried to start it this morning.. It would only keep running with the maf unplugged.. I can adjust the pot and the values increase and decrease.. I dont know of a way to test it though.. I did notice it use to get hot to touch..
Any help would be appreciated as Im truly stumped...


I thought you were able to drive a car without a maf..
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

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AleksanderHugo
Started learning about 480
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Re: The Wolf roams

Post by AleksanderHugo » Wed Jun 28, 2017 12:17 pm

My throttle sensor has resistance between 900 and 2500 Ohms. It's the 2.0 engine, but if I remember correctly all engines should have the same resistance (Haynes contains the specs)

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
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Re: The Wolf roams

Post by WhiteWolf » Wed Jun 28, 2017 12:50 pm

Thanks for the reply....
I will recheck the throttle values. There were 3 tests to do on the turbo which related to the throttle In the haynes manual.. The ez210k has a different procedure than the rest though for checking..
I have probaly worded it wrong though. Those values were correct though.
I will pop the bonnet and check the coil after its stopped raining...
Thanks once again

To be continued....
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

eye of ra
Can tell where the 480 was built
Posts: 355
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Location: Derbyshire

Re: The Wolf roams

Post by eye of ra » Wed Jun 28, 2017 3:47 pm

WhiteWolf wrote:I dont know of a way to test it though.. I did notice it use to get hot to touch..
The unit will get hot as it works by heating an element to probably 80 degrees and then measuring how much current is required to keep it at that temperature, the more that is required the more air there is going over it trying to cool it down.

The measurements should be

Across pins - Ohms
1 and 6 - 382
6 and 7 - 2.7
1 and 6 - 0 to 1000
Current:
480 ES Auto 1989
480 Celebration 187
480 ES Auto 1991
CLK430 Conv 2001
Hyundai i10 2015

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Wed Jun 28, 2017 3:54 pm

I did all the tests of the throttle posistion and load signals..

I checked the resistance of the throttle valve switch...
It has changed since yesterday..
Pedal released it should be 0ohms which it is and was yesterday...
Pedal pressed it should be 1300ohms it was yesterday, today it is 1400ohms..

Ive checked the acceleration and full load signals of the throttle valve switch..

Pedal fully released it should be 3700ohms it is 3080ohms...
Pedal pressed it should 350ohms which it is...

Ive checked the throttle valve switch posistion signal...

Pedal fully released it should be 520ohms mine is 470ohms
Pedal pressed slowly to wot it should rise to 3900ohms mine is 3200ohms
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Wed Jun 28, 2017 4:02 pm

eye of ra wrote:
WhiteWolf wrote:I dont know of a way to test it though.. I did notice it use to get hot to touch..
The unit will get hot as it works by heating an element to probably 80 degrees and then measuring how much current is required to keep it at that temperature, the more that is required the more air there is going over it trying to cool it down.

The measurements should be

Across pins - Ohms
1 and 6 - 382
6 and 7 - 2.7
1 and 6 - 0 to 1000

Thanks for reply...
I knew the platinum wire heated up to burn deposits off of it. I thought it was a quick blast at about 1000º
It was really hot.

My maf has only 6 pins... I can adjust it though via pins 1-6..
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

eye of ra
Can tell where the 480 was built
Posts: 355
Joined: Tue Dec 04, 2012 7:33 pm
Location: Derbyshire

Re: The Wolf roams

Post by eye of ra » Wed Jun 28, 2017 4:12 pm

Are you testing the position sensor connected to the ECU?

Try disconnecting it and use these figures from the Volvo green book.

Across Pins – Ohms released/Ohms pressed
4 and 6 – 0/Infinite(open circuit)
1 and 3 – 3500/300
2 and 3 – 500/3700

The only one that is majorly different to the Haynes way is the first test when pressed.
Current:
480 ES Auto 1989
480 Celebration 187
480 ES Auto 1991
CLK430 Conv 2001
Hyundai i10 2015

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Wed Jun 28, 2017 5:04 pm

Thanks for the reply. Its appreciated...

I unplugged the ecu and tested the posistion sensor from the ecu plug itself.. I followed what it said in the haynes book of lies..

I will test from the sensor itself incase there was any interference along the way...

Even those numbers you have provided are different from what I got...

Thanks once again....

To be continued....
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Wed Jun 28, 2017 6:12 pm

I tested the posistion sensor itself and the values are the same as when I tested it from the ecu plug..
I dont know if being that far off would mess up the fueling..
Thanks once again
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

eye of ra
Can tell where the 480 was built
Posts: 355
Joined: Tue Dec 04, 2012 7:33 pm
Location: Derbyshire

Re: The Wolf roams

Post by eye of ra » Thu Jun 29, 2017 8:34 am

WhiteWolf wrote:
eye of ra wrote:
WhiteWolf wrote:I dont know of a way to test it though.. I did notice it use to get hot to touch..
The unit will get hot as it works by heating an element to probably 80 degrees and then measuring how much current is required to keep it at that temperature, the more that is required the more air there is going over it trying to cool it down.

The measurements should be

Across pins - Ohms
1 and 6 - 382
6 and 7 - 2.7
1 and 6 - 0 to 1000

Thanks for reply...
I knew the platinum wire heated up to burn deposits off of it. I thought it was a quick blast at about 1000º
It was really hot.

My maf has only 6 pins... I can adjust it though via pins 1-6..
Checked the wiring diagrams in case there was a strange numbering system and no just 1-6 so checked Vadis and it looks like there is a misprint in the Green Data Book it should read

1 and 3 – 2.7 Ohms
1 and 6 – 0 to 1000 Ohms (basic setting 382 Ohms)

Not sure what “basic setting” is.

The 1000 degrees is for cleaning only and is controlled by the ECU when the engine is turned off. It actually runs constantly at 100 degrees (not 80) above ambient temperature when the engine is running.
Current:
480 ES Auto 1989
480 Celebration 187
480 ES Auto 1991
CLK430 Conv 2001
Hyundai i10 2015

WhiteWolf
Knows an Aerodeck isn't a 480
Posts: 261
Joined: Sat Dec 20, 2014 1:50 pm

Re: The Wolf roams

Post by WhiteWolf » Thu Jun 29, 2017 12:00 pm

The unit will get hot as it works by heating an element to probably 80 degrees and then measuring how much current is required to keep it at that temperature, the more that is required the more air there is going over it trying to cool it down.

The measurements should be

Across pins - Ohms
1 and 6 - 382
6 and 7 - 2.7
1 and 6 - 0 to 1000[/quote]


Thanks for reply...
I knew the platinum wire heated up to burn deposits off of it. I thought it was a quick blast at about 1000º
It was really hot.

My maf has only 6 pins... I can adjust it though via pins 1-6..[/quote]
Checked the wiring diagrams in case there was a strange numbering system and no just 1-6 so checked Vadis and it looks like there is a misprint in the Green Data Book it should read

1 and 3 – 2.7 Ohms
1 and 6 – 0 to 1000 Ohms (basic setting 382 Ohms)

Not sure what “basic setting” is.

The 1000 degrees is for cleaning only and is controlled by the ECU when the engine is turned off. It actually runs constantly at 100 degrees (not 80) above ambient temperature when the engine is running.[/quote]


Thanks for the reply and doing some investigating. Its much appreciated..

Thanks for explaining about the maf and how it works..

That would explain the heat but I dont know if it should transfer to the outside of it.. It was that hot it made the plastic lid on it just prise off.. It had melted the adhesive.. I took it as my engine running warm.. The oil has been in the 95/105º..

The basic setting of 382ohms is set using the pot.. I think it adjusts the co2 level at idle.. I have a modified ecu by board memeber Robou.. He advises with his modification to adjust it to 520ohms and adjust it by half turns until you can accelerate with ease.. You should be able to accelerate in 5th gear from about 1000rpm..

Thanks for your help once again...

I will do some more tests on the wolf...
She will not be put down....

To be continued after some more swearing...
93 480 Turbo white
with Roboumod
91 480 Turbo white
with Roboumod..
91 480 Es silver

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