86 Wonder Wedge Posted June 19, 2012 Share Posted June 19, 2012 Hello EA82 club! 91 Loyale, EA82 SPFI, 2WD, 5SPD, 116K miles Ok. I go out in the a.m. and try to start the car, no start w/o holding the throttle 50% until started, the CEL stays on, and idles around 350-500 RPM on its own. I go to drive, and she sorts of bucks mid range, and is slow on the take-up if I spike the RPMs. Also, upon engine braking ( from 1500-on) and pull into neutral, the idle bottoms and stalls (like you turn the ignition off), but restarts right away, CEL still on, and idles stupid low. Pull the CEL code: Code 24, and that's it. NOW, for the twist. When the engine FINALLY warms up (the gauge never reaches half point, more like 1/4 when it's "warm"), the idle stops bottoming out, the engine doesn't hesitate, and is much livlier. PLUS, when I turn the ignition off for a second or two, restart, the CEL goes away, and the idle sits right at 700. It will start and run 100% 20 mins, 1hr, 4hrs, and today, it went 6hrs, without running, and started perfectly. INFO: All tests/readings were when the engine was cold (CEL on) Idle valve Ohm (10.4), infinite Ohms between terminals and body Harness power (black/white wire) 12.2V MAF: 10.3Ohm resistance on gnd terminal, 12.2V feed, and good signal power (can't remember values, but it was smack in the middle and varying w/ blowing into air box) CTS: 435Ohm @ 147F NO build-up in throttle body (I mean SPOTLESS. The zinc plating is still POLISHED), no fluid leaks. The IAC is original and I watch it cycle when the throttle is actuated, and when the ignition is turned on and off. now.... GO! Quote Link to comment Share on other sites More sharing options...
86 Wonder Wedge Posted June 21, 2012 Author Share Posted June 21, 2012 UPDATE! Well, my throttle body re-gasket finally came in, so new injector O-rings, upper TB gaskets, new FP reg o-rings and a new fuel filter, and my problem is cured. There wasn't anything obviously wrong with any of the components, but i figured it couldn't hurt (esp with the added ethanol in the fuel now a days). Don't ask me why, I couldn't see why the computer has rectified the electrical dilemma it was in by a simple regasket (the injector housing to TB gasket was fairly wet..) or it was a vacuum leak that sealed upon warming up?! IDK.. lol anyway, no more cold idle problem! Quote Link to comment Share on other sites More sharing options...
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