start-up problem !!! please help

[r5b18ft]

Suddenly my turbo would not start ..

It turns over fine, fuel pump runs OK, but would not start.

Tried to push-start it and it started immediatley!!!

Went for a ride around the block .. came back home .. switched off, tried again and same problem!! checked for spark & it's ok and my aftermarket fuel pressure regulator reads 3.2 bar instantaneously.

Tried to push down the road once again .. and it goes !! Idles, revs up & drives perfectly. Then I switch off and try cranking again and nothing .. not even one single 'fire'!

Any ideas ????

N.B. Been noticing lately that sometimes (when cold) it takes alot of cranking before starting .. tho I just bought a brand new original BOSCH cold start temp. sensor. Still kept doing the same.. did not bother as it always started, but now it doesn't

[glasgowjim]

Swop batteries over or check the battery condition and the alternator output. Sounds like it could be dying under load.

[r5b18ft]

Swop batteries over or check the battery condition and the alternator output. Sounds like it could be dying under load.

its a brand new 64 A/hr battrey .. turns over veryyyyy well !!

[Iroll480]

In that case check the contactlock. I think that whilst starting the coil isn't getting current and with the key in the contact on position it does. Also check relais in position C, that's the ignition relais.

[r5b18ft]

I removed a plug and held it close to the head while cranking and spark seems OK..

[Iroll480]

If your sure it sparks while cranking it must be getting no fuel whilst starting. Or the spark is not strong enough, is it a nice powerfull blue spark? Can you hear the pump in the start position? Maybe duff fuelpump relay?

[r5b18ft]

yes I can hear it run .. and I run an aftermarket fuel pressure regulator and it instantaneously reads over 3 bar

[r5b18ft]

If your sure it sparks while cranking it must be getting no fuel whilst starting. Or the spark is not strong enough, is it a nice powerfull blue spark? Can you hear the pump in the start position? Maybe duff fuelpump relay?

what could cause a weak spark ? not sure about the 'powerful blue spark' .. maybe coil needs replacement ?

[Iroll480]

A weak sparks would mean that the coil is getting a too low current whilst starting. I would bet there''s too much resistance in the contactlock. If it runs when pushing the car that means the coil is ok.

[r5b18ft]

A weak sparks would mean that the coil is getting a too low current whilst starting. I would bet there''s too much resistance in the contactlock.

can't understand what you mean by 'contactlock' .. if its something with the 480's then its something I don't have as I'm running this engine in my Renault.

How much current should the coil recieve ? I could check that with a meter from the coil terminals..

[Iroll480]

With contactlock I mean ignitionlock, where you put the key to start. I shall look up for you what the current is what the coil should receive. I only have the german version for thee B18FT engine so have to translate it, or do you read german?

[r5b18ft]

With contactlock I mean ignitionlock, where you put the key to start. I shall look up for you what the current is what the coil should receive. I only have the german version for thee B18FT engine so have to translate it, or do you read german?

hahaha no .. I can read Maltese, English, Italian & some French tho no German.

Cheers! that'll be of great help!

[Iroll480]

Ok, here''s a copy from the B18FT manual. Connect a bulb of 12v and at least 4w to connectors 1&2. Then start the engine. While starting the bulb should blink.Here it states that if the bulb doesn't blink the coil should be repalced. Hope this helps!

[Iroll480]

This you could check also. Shown 3 pin connector is located next to /above the 2 pin connector on the coil as shown in my previous answer.
remove the shown connector from the coil, connect a voltmeter between mass and pin A with the ignition on. Put the key in the startposition, voltage should read at least 9,5 volt. If not check the wiring between ignitionlock and coil. Check the resistance between B and mass with ignition in the off position. Should be 0 ohm

[r5b18ft]

i don't have anything of that sort ..

my coil has only one plug with 3 pins which go into a small black sealed box with 2 leads going out to the coil .. one to the neg and another to the positive

[Iroll480]

Sorry, can't help you then. But in my opinion it must be a bad connection between ignition lock and coil. Measure the resistance of the wiring between coil and lock and if that is ok try changing the lock.

[Robou]

The black thingy holds a transistor circuit which connects the black wire to ground in order to energize the coil and disconnects when a spark is due. It is governed by the EZ210K ECU. It is obviously in a working state, because the motor runs when the car is pushed.
The ECU will not work when it is powered below 10V. The board voltage, whatever the age of the battery, may go below this when connections are bad or the starter motor needs a lot of current because it is worn out.
Check the voltage, while starting, on the red wire and/or connections 5 and 6 of the ECU. It should be over 10V. Both are connected via pin 15 of the ignition switch.

[r5b18ft]

Yes, thats what I was thinking about !! have to go buy a new meter cos my old one ain't working any more :/