Ok the ZuZu idles at 2k and will rev between 2k and 3k. Replaced TPS, FPR, IAC and intake gasket. There is no check engine light nor any codes. WTF?!?!
Please any ideas?
VXer
Ok the ZuZu idles at 2k and will rev between 2k and 3k. Replaced TPS, FPR, IAC and intake gasket. There is no check engine light nor any codes. WTF?!?!
Please any ideas?
Super VXer
bad gas? water in tank? fuel lines clog? fuel filter shot to heck? fouled spark plugs?
Super VXer
Remove the two bolts holding the EGR. Note if loose. Inspect for soot blowby on the gasket. Apply high temp copper coat on both sides of gasket (IF not broken) and retighten.
Cracked vacuum hose at connection.
Roy
Super VXer
Did you cleaned your throttle when replaced IAC? And I'd say to check MAF performance.
2001 Isuzu VehiCROSS (build in progress): 4JX1/A340/part time, 2" body lift, front Aisin hubs, rear Aussie Locker, 4.56 gears, OEM rear sway bar disconnect, AirFlow snorkel, cabin air filter
1980 Jeep Cherokee (assembling): 1.5" body lift, TBI, HEI
1987 AMC Eagle: stock
VXer
LittleBeast - that was one of 2 things the autoshop could tell me, it does not appear to be a fuel problem.
NewThings - that was the other thing they said - no vacuum leak detected.
Uncle_Asa - Yes, cleaned the throttle and the IAC and had replaced MAF. (Forgot to list that as one of the things replaced.)
An interesting update - We "manually" adjusted the IAC sensor and through trial and error, got it to idle at the proper idle speed in both park and drive. No check engine light either. I'm wondering why we had to adjust the sensor manually for it to work properly. Possibly the plug that the sensor plugs into is bad?
Super VXer
Check this thread I just started...
http://www.vehicross.info/forums/showthread.php?t=16136
It could be that diaphragm that I (in a round about way) replaced... I had same symptoms you describe...
We sit together, my VX and I, until only the VX remains.--Iamironman
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