How to install rpruen mod?

fargo · Post by **fargo** » Wed Sep 28, 2005 9:27 am

Hello guys.
Sorry for the hastle, but I just received the modified ECU from our Richard the Wizard, and I'd like to now for sure how to install it. Unfortunately I cannot reach Richard, probably he is away or busy or maybe sick, so I decided to ask it here. Is it only plug-and-pray? Or is there a standard protocol for unleashing all the sleeping horses in the car? Say, resetting the whole thing by removing wires from the battery or something like that?

I can harly wait...

(And Richard, if you read this, thanks for the fast shipment and friendly attitude, I'm really grateful

)

VanDerGraaf · Post by **VanDerGraaf** » Wed Sep 28, 2005 9:45 am

Yeah all you have to do is plug it in. The ECU will have no data on driving style as its been out of the car. It will tune itself to your driving (and to the condition of the engine etc) over the first few hundred miles.

Rohan

tobi480turbo · Post by **tobi480turbo** » Wed Sep 28, 2005 9:50 am

Hy !

normally itÂ´s just plugÂ´nÂ´play.
Just remove the old ECU in the middle section replace it with the modded one connect the tube to the MAP sensor of the ECU and give the LH-jetronic a reset ( disconnect Battery for 30mins or disconnect the connector ).
After that everything should be done, the first time when driving itÂ´ll start learning again whichi about to take ~100km.

So shouldnÂ´t be that big problem

Regards

Tobi

fargo · Post by **fargo** » Wed Sep 28, 2005 9:54 am

Thank you guys, I really appreciate.
I'll do it in the evening.

Exactly what is this "learning" about?
The computer determins my driving style and adjusts its mappings (or what) to that? Is this definitive from then on? Or the computer adjusts itself regularly?

tobi480turbo · Post by **tobi480turbo** » Wed Sep 28, 2005 9:56 am

it learns about the boost and how you drive ... this results in quicker spooling up time of the turbo and when drving more agressive the ECU probaly is going to react a little bit quicker.

Regards

Tobi

fargo · Post by **fargo** » Wed Sep 28, 2005 10:00 am

OK, the question is:
Shall I leave the car with my wife and let her use it in the following days or shall I run it in?

MrE · Post by **MrE** » Wed Sep 28, 2005 10:18 am

Plug and play is the right words for it!!
The only advice i would give is run 97 ron fuel to get the best out of your car and mayb get som slightly hotter capacity spark plugs... can't remember the NGK code off the top of my head....
Richard is currrently without internet access so contacting him is gonna be tricky....
Regards Edd

tobi480turbo · Post by **tobi480turbo** » Wed Sep 28, 2005 10:31 am

Hi again,

about the fuel I agree, but not with the spark plugs. As far as I know or had tested some slightly colder spark plugs would be better as in fact of the higher boost ... hotter ones could cause knocking and higher combustion temperatures.

About the driving I donÂ´t really know what to say, if yoÃ¶u want to get sure that everything i working well and no probs are there with the mod it probably would be the surest way if you drive the car by your own the first few days ... just to be sure that allÂ´s in fine working order.

Regards

Tobi

martinholmesuk · Post by **martinholmesuk** » Wed Sep 28, 2005 10:47 am

Drive it hard mate, Don't let the wife drive unless she likes to spool some turbo up. Beat the ECU into wanting more power

fargo · Post by **fargo** » Wed Sep 28, 2005 10:55 am

OK, I will postpone the ECU swap for a few days, because I cannot pass the T5 to her, (I need the boot) while she cannot be without a car for the rest of the week.

BTW, she does love spooling the turbo, she is a pretty good driver. Outsider to cars, though. When I had the 850 tuned, it received 280 HP. I told her I'll take it to "springtime inspection and preparation". The next day she took it for a ride, then called me saying "this springtime thingie did miracles to the car, it goes like stink"!

MrE · Post by **MrE** » Wed Sep 28, 2005 12:25 pm

Lol apologises Tobi, i meant cooler spark plugs that can take hotter conditions......

dave · Post by **dave** » Wed Sep 28, 2005 3:41 pm

Do you not have to turn the boost presure up on the acutator as well?

dave

martinholmesuk · Post by **martinholmesuk** » Wed Sep 28, 2005 3:45 pm

fargo · Post by **fargo** » Wed Sep 28, 2005 3:50 pm

What if it's already turned up? I guess it does not really matter, right?

tobi480turbo · Post by **tobi480turbo** » Wed Sep 28, 2005 6:53 pm

MrE wrote:Lol apologises Tobi, i meant cooler spark plugs that can take hotter conditions......

hehe .... thatÂ´s why we are here at the board

and thinggys like this can happen

Cheers

Tobi

dave · Post by **dave** » Wed Sep 28, 2005 7:09 pm

martinholmesuk wrote:nope

So how does that work??

Dave

Murf · Post by **Murf** » Wed Sep 28, 2005 7:11 pm

there is a boost control solenoid valve that controls the amount of pressure that the wastegate gets.
its controlled by the ecu and means a perfectly flat torque curve, good old volvo

Bramdeman · Post by **Bramdeman** » Wed Sep 28, 2005 7:15 pm

dave wrote:
martinholmesuk wrote:nope
So how does that work??

Dave

The boost on the 480 is controlled by the boost solenoid wich is controled by the ecu. So the modded ecu sets the boost higher and the fueling and ignition to go with it.

Adjusting the wastegate actuator doesn't do anything becouse the ecu couldn't care less, it just opens the wastegate when it needs to no matter how long or short the actuator is.