1.8 GDI Turbo wont idle
Hi
Sorry if this has been covered elsewhere, I have searched and not found it.
My 2001 Pajero IO has done 110000ks and has the 1.8L GDI Turbo engine. (auto)
Ever since we bought it 3 years ago (55000ks) it has either reved like crazy when you start it cold, or stalled when ideling. I havent got time or tools to do much myself so we have had our local Mitsubishi dealer and other mechanics try and fix it time and time again but no matter what they do it has one or the other issue.
Its latest trick is to rev to about 3000rpm for about 20 seconds when you start it.
Then yesterday I got a flat battery and removed it, charged it, reinstalled it.
Now today it starts, doesnt overrev like before, drives fine but at the first red light stalls!
I really dont want to spend lots more money at Mitsubishi just for it to do the revving trick again. Any ideas?
Syndicate
ECU "retrain" procedure.
There is an ECU retrain process that must be carried out everytime you reset the ECU on a GDI engine, a reset will occur when the battery is disconnected & reconnected - I can give you the procedure for a normally aspirated GDI, I have no idea if it is different for the turbo models.
Start the engine and allow it to warm up fully - there's actually a specific temperature it must reach, but no way to measure that temperature unless you have an IR temperature gun or similar.
Switch the engine off and allow it to idle for 10 minutes, with the transmission in neutral (or park) and the air conditioning off - switch off and restart, and again allow it to idle for a further 10 minutes, this time with the a/c on, blower at full, and all windows open - switch off and restart and again allow it to idle with the a/c on, blower at full and the windows open.
The notes indicate that the engine may stall as the ECU switches stratified charge mode on & off - so you'll need to monitor it and restart if it stalls.
I would suggest you try it, all you have to loose is some time and a bit of fuel.