ManicMechanic Posted December 26, 2008 Report Share Posted December 26, 2008 Where do you get your interchange info from?? You have a Hollander Interchange program of some sorts?? As a matter of fact, yes Bob. Quote Link to comment Share on other sites More sharing options...
mra32 Posted December 26, 2008 Author Report Share Posted December 26, 2008 New code, 15. Points to coolant temp sensor. I dunno this is getting ridiculous Quote Link to comment Share on other sites More sharing options...
mra32 Posted December 27, 2008 Author Report Share Posted December 27, 2008 this seems like a retarded question but how do you get the wires off of the ECM? Quote Link to comment Share on other sites More sharing options...
Crazy K Posted December 27, 2008 Report Share Posted December 27, 2008 what makes you think it is an ecm at this moment? Quote Link to comment Share on other sites More sharing options...
LuminaPower92 Posted December 31, 2008 Report Share Posted December 31, 2008 I was looking in my Lumina Service manual, the diag chart seems to say : Code 53 System over voltage Running @ 800 RPM - If above 17.1v replace generator, below replace ecm. Running @ 2000 RPM - If above 17.1v replace generator, below replace ecm. What do ya guys think? Quote Link to comment Share on other sites More sharing options...
spiderw31 Posted December 31, 2008 Report Share Posted December 31, 2008 I still say get a meter on there and watch the voltage. If it really is that high, then replace the alt, and be ready to change anything else that doesn't like to be overvolted. Otherwise, the ECM lost its mind. Quote Link to comment Share on other sites More sharing options...
mra32 Posted December 31, 2008 Author Report Share Posted December 31, 2008 I tried starting it up today, it stalled out after 30 seconds of running poorly. I started it up again and had to keep my foot on the throttle to keep it going, but this whole time, It was clearly missing when I revved it up. Is there any way to check the ICM or the coil packs without having spares? I might be able to get to the j/y tomorrow. What do you guys think I should pick up? Quote Link to comment Share on other sites More sharing options...
ns87 Posted December 31, 2008 Report Share Posted December 31, 2008 For the coil packs, I remove one wire at a time and start the car. If the car feels exactly the same, then you know something is wrong on that coil. Also, the spark should be a healthy blue or white. Not yellow or red. I know its a real pain on the 3.1 If your car is like mine with the coolant tank in front, I suggest you remove that and unbolt both radiator fans. Unplug them and lift them out. It gives you plenty of room to work down there If you do wind up removing the ICM/coil packs, the bottom bolts are easier to get to with an extention while lying under the car. Remember they take 5.5MM attachments, not 5 or 6mm Quote Link to comment Share on other sites More sharing options...
mra32 Posted December 31, 2008 Author Report Share Posted December 31, 2008 oh yeah I tried to start it again and it sounded like backfiring. Quote Link to comment Share on other sites More sharing options...
mra32 Posted December 31, 2008 Author Report Share Posted December 31, 2008 Ken called me this past weekend to help me troubleshoot the damn car and he told me to check the injectors. I'm ready to pull off the plenum and test the impedance of the injectors. Will I definitely need to replace the intake gaskets? Could I get away with reusing the old gaskets or rtv'ing the 2 parts together? Quote Link to comment Share on other sites More sharing options...
mra32 Posted December 31, 2008 Author Report Share Posted December 31, 2008 Does anyone think its a crank position sensor? Quote Link to comment Share on other sites More sharing options...
spiderw31 Posted December 31, 2008 Report Share Posted December 31, 2008 With the other symptoms you've mentioned? No, I don't. Quote Link to comment Share on other sites More sharing options...
Crazy K Posted December 31, 2008 Report Share Posted December 31, 2008 did you get your alternator tested??? Quote Link to comment Share on other sites More sharing options...
mra32 Posted December 31, 2008 Author Report Share Posted December 31, 2008 no, i could only briefly work on my car again yesterday. I got it to run and checked out the voltage and it was good. I'm going to try to check the voltage when its running shitty. Quote Link to comment Share on other sites More sharing options...
ns87 Posted December 31, 2008 Report Share Posted December 31, 2008 Does anyone think its a crank position sensor? I think if you have any spark, it isn't the CPS Quote Link to comment Share on other sites More sharing options...
ismellrealbad Posted December 31, 2008 Report Share Posted December 31, 2008 a bad cps will cause the engine to stall and not re-start once hot. other than that i dont think there are any other symptoms of one. id throw an ecu at it first thing if your alt checks out Quote Link to comment Share on other sites More sharing options...
mra32 Posted January 1, 2009 Author Report Share Posted January 1, 2009 grifted an ecm from the jy today. Holy shit was it cold. Hopefully it works tomorrow Quote Link to comment Share on other sites More sharing options...
LuminaPower92 Posted January 1, 2009 Report Share Posted January 1, 2009 Let us know man. Quote Link to comment Share on other sites More sharing options...
mra32 Posted January 1, 2009 Author Report Share Posted January 1, 2009 OK! I went driving for like 10 minutes with the new ECM and not a stutter. Well there was the low idle, but thats cos its a new ecm and it needs to adjust itself. I Think I'm going to go out on a limb and claim victory on this one. I'll repost in here if anything changes. I kinda feel silly since if i went with my first instinct, one quick trip to the j/y and I would have been back in business as opposed to a week of off and on trying to fix this working around my schedule. But it did pick a good time to go south since I was on my winter break. Just a thought: I saw some wear on my old ecm and I thought that maybe the fact that I have stiffer, lower springs might be more jarring to the computer. I know guys have probably had the same setup as me, even stiffer on their cars for way longer, but hey, its a possibility? I dunno, mine might have just been weak. Or it may have been fried by the alt. If the same thing happens again, I'll replace both the alt and the computer. But YES! I feel like doing a dance. Now time to clean up my car and fully finish buttoning up my engine. Quote Link to comment Share on other sites More sharing options...
LuminaPower92 Posted January 1, 2009 Report Share Posted January 1, 2009 Awesome man, glad to hear it. Hopefully its back to normal. As far as the idle, try to relearn the idle. Quote Link to comment Share on other sites More sharing options...
spiderw31 Posted January 1, 2009 Report Share Posted January 1, 2009 Good stuff man... glad to hear it is running right again Quote Link to comment Share on other sites More sharing options...
1990lumina Posted January 1, 2009 Report Share Posted January 1, 2009 I doubt a stiffer suspension had anything to do with the ECM failing. It's old and old electronics sometimes fail. Hell, in the Suzuki Swift+ (Aveo) it's not uncommon to replace 2 or 3 ECMs in only the first few years of the car's life. Quote Link to comment Share on other sites More sharing options...
mra32 Posted January 1, 2009 Author Report Share Posted January 1, 2009 I doubt a stiffer suspension had anything to do with the ECM failing. It's old and old electronics sometimes fail. Hell, in the Suzuki Swift+ (Aveo) it's not uncommon to replace 2 or 3 ECMs in only the first few years of the car's life. Yeah, it might be out there, but vibrations and shock will lead to failure of boards like that. On another note, can someone do something with the PROM that was in the computer from the junkyard? It was out of a grand prix sedan with a 3.1, if that matters. Not sure what transmission. I'll give it to you for free. I dont know if someone wants it, maybe they can program it and want a spare? Whatever, if you want it, its yours. Quote Link to comment Share on other sites More sharing options...
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