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post #1 of 5 (permalink) Old 02-23-03, 06:43 AM
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EA Possessed? please help


Some advice greatly appreciated. Have an 89 EA 3.9CFI wagon with some odd problems.

If I let her just creep away from dead stop it will accelerate albeit slowly to around 40kph. At 12kph itll change to 2nd and at 22kph into top unti I reach 40kph................mmmmmmmmmmm ...........bit strange. It now also appears to be misfiring at idle (feels like a tq20cam as the body starts to rocknroll) and at times idle will go up and then go down, but out on the highway it runs great. Sometimes when I turn her off it will pre-ignite, other times it will not depending whether idle is high or low at the time I stop.

Checked all sensors via ecu and all seem to be working. Did a diag and got no permanent faults.

Engine was remanufactured about 20k ago, so compression and engine internals are fine.

Ok so I adjusted the timing for the hell of it and reset the base idle. No significant change. Noticed that leads were a bit dodgy and no4 plug a bit rich. Assumed that leads and plugs may have been contributing to the problem so changed all leads and plugs but this did not seem to make any real difference.

Any ideas truly appreciated this is drivin me nuts



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post #2 of 5 (permalink) Old 02-23-03, 02:37 PM
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You're engine was remanufactured only 20k ago and your getting pre-ignition ocassionally?

I thought pre-ignition was due to deposits inside the combustion chamber? My old car (Camry with 216,000kms) used to do it often (especially when hot).

Nothing been left in the throttle body / intake manifold? (Some gunk, a spanner, or something?).

damienpw is offline  
post #3 of 5 (permalink) Old 02-23-03, 03:24 PM
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I thought Pre Ignition was timing related.
Is the dizzy ok?

Bass Crazy is offline  
post #4 of 5 (permalink) Old 02-23-03, 06:44 PM
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I have had this problem before, and it was the TPS. It was crook, but was not crook enough to log a fault code in the computer. I also had a CP injection system. It did the exact same thing and after i replaced it the car was geat ever since.

Drive it like you stole it.....
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post #5 of 5 (permalink) Old 02-26-03, 03:52 AM
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Many Thanks guys , the dizzy fine, I'll check out the tps
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