Ecu Been Fiddled With, But Where?

[yanisuperman]

I think i see the problem, you went to a dodgy unlicenced mechanic who is not qualified to change your oil let alone get into high tech stuff, i know of a few people who had their cars ruined at wollongong motorsport centre, they are the worst in the buisness, and are under investigation from the office of fair trading, the sheffis office and the motor vehicle repair industry authority.

Good luck.

[lilhaulerz]

Betcha 10 bucks... if you change your fuel pump.. it'll fix your problems.

The car is running lean cuz tired fuel pump.

Check my old post. i had exact same dipp before, denn change my fuel pump it fixed it.

what your car is doing is running rich n retard, when the AFM senses two much flow and ECU goes stoopid. But because your fuel pump is tired, it not able to richen up the mixtures.

Before wen i had some prob as you. Look familiar

http://img147.imageshack.us/img147/4482/imgzu7.jpg

After new fuel pump - Pink line

and Tune- Other line

http://img147.imageshack.us/img147/4482/imgzu7.jpg

since denn have made 205kw@wheels same setup...

[TiTAN]

why dig up a thread from Feb 2007 just for that?

[NewKleer]

all posts are the same age when you're a new user

Betcha 10 bucks... if you change your fuel pump.. it'll fix your problems.

i'd take that bet any day. not sure how a dip from 11.8AFR to 12.0AFR can cause a 30HP difference. it has to have some ignition timing component to that. also his AFR is still getting richer, not leaner as you go higher, so fuel pump is fine.

your loss of power almost looks like your car leaned out a bit, which led to either pinging/detonation or the timing being retarded, which caused the drop in power. so fix the leaning out with a better fuel pump and you no longer get the drop in power from the detonation/retarding.