Originally posted by Nathan:
Started out as engine stumbling under heavy load (WOT) at lower RPMS, such as going up hills. Just yesterday it started running like this all the time, regardless of load or RPMs.

No CEL. Got fairly new plugs, fuel & air filters (stock). After searching the forums I tried disconnecting the MAF - didn't help. ...Secondaries are opening alright.





Clean IAC, MAF. Check battery, alternator, O2 sensor, spark plug wires, fuel pump, vacuum leaks.

Edit. And scan for CELs eventhough it is not lighted. And how "new" are the plugs, air and fuel filters? Also test for plugged exhaust by removing O2 sensor.

Last edited by Tony2005; 09/18/05 01:50 AM.
"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles