Car is sold, thanks the for enquiries...1996 Eclipse GSX 5-speed Black exterior, grey leather interior 154k miles (107k on the engine, see below) $3900 obo, cash only Located in Harrisburg, PA Contact via PM or email [email protected]: • runs great • no check engine lights • original...

For future reference, in case anybody else has the same wise idea I had about replacing this solenoid with a resistor... it does NOT work. I had a bunch of high wattage resistors and tried a bunch of different values, from 40 ohm to 150 or so.No idea what the ecu does to detect that sensor...

@Brembo and delta448 - Been a while but I did finally take care of this problem. Your intuition was right from the start: was the coils.But before that I realized I had bad gas or water in the gas. Adding isoheet and running through a few tanks made things BETTER, but not solved. It did...

Yeah not sure why I didn't put more cursors on the 2nd run but here's another snap with a few more. These graphs are from the zeitronix datalogger.As for the egt not shooting up, maybe it's because the afr heads towards lean but never actually gets fully lean during wot? In any case, I'm...

Ok makes sense, been hesitant to mess w/ the tuning b/c I don't wanna blow it up, heh, but what the heck.But if the tuning hasn't changed, is it plausible that a failing fuel pump could do this? Or would that look totally different. I should probalby take your advice and install a pressure...

Here's the 2nd run, i think it was 3rd gear then 4th gear both full throttle. Again the afr seems weird, it sorta leans out and wavers around? Is this what weak fuel pressure looks like?

Well it's been a while but I finally got a new wideband O2 installed and did some of the tests you guys suggested. The 2ndary coil resistance was right on the money and the primary coil was around .9 ohms. That's slightly off but my ancient fluke meter is really inaccurate down that low so...

Man lots of information, thanks guys. I may not post back for a while, life getting in the way for a bit. But you guys are leaning heavily to the ignition side so I'll keep looking into that.@Brembo: I had cheapo autozone plugs and wires for a while without problems, and now that this has...

Well it's not the plugs, I just replaced them (or the wires, I replaced those before posting). Though strangely the hesitation is different with the new plugs. Instead of random stumbling it's very consistent now, like machine gun fire. Very weird.It only happens during high boost, like...

Well I might be barking up the wrong tree. It does look like the wideband O2 sensor is probably bad; it's bent and the cable insulation is ripped. I reseated all the connections (thx DSMPT for the suggestion) but no difference.But it's not in place of one of the stock O2s. Yeah I'm just...

Yeah between you and delta448 it appears that's what I gotta do. It's a pain though so just wanted to check before going through with it. Thx.

I was reading it from the digital display, didn't get datalogging to work yet. Will hopefully get the zeitronix datalogger working tomorrow and see if it reports the same.Very interesting about the pos/neg current. That suggests it could be completely dead and reporting what I see.

I've been trying to diagnose a new problem - car stumbles/hesitates horribly under high boost. Zeitronix ZT2 wideband O2 reads a lamba of 1.00 at all times, AFR stays at 14.8 during accelaration or lift, only sometimes flickering to 14.7.So the question... is this a likely symptom of sensor...

I did try that before and it seemed to work; it would click when voltage is put across and it had the correct resistance when I checked that. I just assumed it's going bad intermittently, flaking out. The car doesn't throw the code right away after clearing...

Cool, thanks for the tip. I'll call them if all else fails...