Help wanted!
Thread Starter
Evolved Member
iTrader: (1)
Joined: Nov 2008
Posts: 748
Likes: 7
From: Cayman Islands
Help wanted!
Hi guys,
Helping my friend out with an Evo X. Please see below:
Helping my friend out with an Evo X. Please see below:
Need a solution to an issue before i burn the car.....
1. Car was running fine. Tune was excellent
2. Car is starting fine when cold but goes to idling RICH 10 - 11afr.
3. Cruising is fine at 14 -15 afr but soon as lift of gas to slow down or stop goes back to rich .
4. Warm start doesnt work unless gas pedal is floored. If not plugs will be flooded and have to unplug injectors and crank n then plug bck in.
5. ALL sensors on engine have been replaced (coolant temp, map, maf, both cam sensors, crank sensor, iat, front o2)
6. CEL only shows system too rich error
7. If i try to go WOT afr goes lean.
8. Double pump hanger with 2 new aem pumps. 8an feed and 6an return. New fuelab FPR
1. Car was running fine. Tune was excellent
2. Car is starting fine when cold but goes to idling RICH 10 - 11afr.
3. Cruising is fine at 14 -15 afr but soon as lift of gas to slow down or stop goes back to rich .
4. Warm start doesnt work unless gas pedal is floored. If not plugs will be flooded and have to unplug injectors and crank n then plug bck in.
5. ALL sensors on engine have been replaced (coolant temp, map, maf, both cam sensors, crank sensor, iat, front o2)
6. CEL only shows system too rich error
7. If i try to go WOT afr goes lean.
8. Double pump hanger with 2 new aem pumps. 8an feed and 6an return. New fuelab FPR
Evolved Member
Joined: Nov 2013
Posts: 1,538
Likes: 91
From: Houston
Damn. How about this? http://www.evoxforums.com/forums/showthread.php?t=67324
Trending Topics
What's the fuel pressure reading at idle when it's too rich? Could be a problem with the FPR or the vacuum line to it. The warm idle flood combine with lean under boost makes me think FPR
Thread Starter
Evolved Member
iTrader: (1)
Joined: Nov 2008
Posts: 748
Likes: 7
From: Cayman Islands
My friend’s reply:
To my knowledge he has also tried another FPR.
Fpr at idle is 45psi. And i hooked up a long line and guage and rested on the windscreen and did a pull, it went up to about 70psi and was still lean.
Thread Starter
Evolved Member
iTrader: (1)
Joined: Nov 2008
Posts: 748
Likes: 7
From: Cayman Islands
Thread
Thread Starter
Forum
Replies
Last Post