Tuesday, April 04, 2006 - 09:19 pm, by: Alfred Heng(Alfred)
I had disconnected my battery when I first got the car in an attempt to reset the ECU and since then the exhaust smells of fuel. I remember reading that when the ECU is reset, the mixture is slightly rich and you will have to give the car a few quick run to teach the ECU the leaner settings.
Well, I did not do that at that time, so my question now is, will I have to reset the ECU again or can I now just give it a few quick runs, will that be enough to lean out the settings?
Wednesday, April 05, 2006 - 03:37 am, by: Dragan Vidic(Soarer_ttt)
drive the car so that its warm, pull over on the side of the road where you can gun it, reset it, get back in and put your foot down to about 100. stop and floor it a few times, again to about 100 and you're done ....just take out the green fuse instead of disconnecting the battery
Thursday, April 06, 2006 - 01:17 am, by: Peter Nitschke(Pen)
They usually do go rich for starting. If the smell goes away pretty quickly, then forget about it. Just leave your windows shut for a minute when starting.
Thursday, April 06, 2006 - 12:38 pm, by: Damien Smith(Damien)
Up to about 94 (I'm sure Neil will correct me if I'm wrong here) the V8 had an extra cold start injector which poked up into the middle of the plenum. When the car first starts the injector switches on and it sprays extra fuel into the airstream. Plus the fuel table is richer when the engine is colder and gradually leans out to the normal mixture as the engine gets to operating temperature.
This is worth keeping in mind for anyone playing with piggyback fuel computers - the engine needs to be at operating temperature before tuning can begin.