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Discussion Starter #1
Having some serious issues with my cobalt. Has been running on base tune after turbo install for 2 weeks, with no problems. Installed new tune yesterday from trifecta, ran fine all day. This morning CEL came on, drove it down the street then noticed real bouncy idle, drove it home, turned it off and wouldn't start again. Turns over then dies right away.

CEL code I'm getting is P0443 - purge solenoid/wiring or something.

Help! Need the car working and not willing to tow it to stupid dealer...
 

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Discussion Starter #2
found issue. Was a blown fuse under the hood. 10A "Exh" fuse. Anybody ever blown this fuse before? possible reasons for blowing it?
 

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short to ground in an o2 sensor wire? that would cause it to pull more current and pop the fuse...
I think it's that. I popped 2 more fuses today, basically pop one everytime I drive somewhere...so annoying! g2 get this fixed.

I'm thinking of disconnecting the primary O2 sensor (which is currently slightly bent and wiring is hitting a bolt sticking out of firewall) for tomorrow, since I only have to drive 15 mins to train and back. You think this will cause any problems? if that fuse is blown I think there won't be any power going to that O2 sensor as well as everything else the fuse connects to anyways, no? (it's apparently also connected to the MAF, both O2 sensors, and the evap solenoid)
 

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Disconnecting the O2 will only turn on CEL and srewup fuel mixture a bit no biggy. Better than knocking MAF out of circuit.
 

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ya you probably are missing insulation on that wire touching the bolt. i wouldnt drive it in that condition myself. especially with those other critical systems wired in that circuit. bare minimum i would wrap that wire where its touching the bolt in electrical tape before driving it.
 

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Discussion Starter #7
thanks coby7, that's what I was wondering.


and I need my car, least tomorrow and Wednesday. Just to get to the train and back...

then Thursday night I'm going to drive it up north so I can fix it with my dad. Mostly highway driving, and I believe that at cruising speed the computer sets A/F to about 14.4-14.7 anyways so I think it should be okay, least that's what my wideband has been reading...
 

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Discussion Starter #9
ive got an o2 sensor extension from zzp im not using if you want it, its yours.
damn how does that work? and can u snap a picture? is it the bend thing (like they did for my rear O2 sensor) and will it screw into my current primary O2 bung or something?
 

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its just got male and female connectors, and snaps inline between the connector at the end of the sensor. havnt used it cause by the time i got it, my header showed up and didnt need it anymore.
ill snap a pic, but it will be till wednesday that i can post. only have internet at work lol.
http://zzperformance.com/cobalt_ion/products1.php?id=357&catid=144
 

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Discussion Starter #11
its just got male and female connectors, and snaps inline between the connector at the end of the sensor. havnt used it cause by the time i got it, my header showed up and didnt need it anymore.
ill snap a pic, but it will be till wednesday that i can post. only have internet at work lol.
Cobalt & Ion ---> ZZ Performance
ah no that won't help unfortunately. It's the actual sensor that is bent up against the firewall, and where the wiring begins at the end of the sensor there is a bolt from the firewall hitting it. I could try and get pics tomorrow I guess.
 

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ah no that won't help unfortunately. It's the actual sensor that is bent up against the firewall, and where the wiring begins at the end of the sensor there is a bolt from the firewall hitting it. I could try and get pics tomorrow I guess.
oh, i got ya. guess i misunderstood what you meant. i was picturing the problem i had with needing to stretch the wire. lol
the stock wire was a lil to short and came out of the sensor at a gnarly angle. idk what to do about your problem bro. buzz that bolt off lol.
 

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Dad will think of something we are good for that!!! lol. Put the ballpean hammer to the firewall.:bigsmile:and then:cry:
 

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^lol coby7, too true! I actually knew everything bout the turbo install etc. But when it came to tiny things, like injectors not fitting back in, he helped me out and we fixed it together. Plus he's a contractor so he's got lots of tools. I'm goin up Thursday night, he said he'd try and think of something. I hole we solve the issue and quick!!!!
 

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i hope you get er figured soon too. i wanna see some vids of that bad boy. when you gettin it tuned?
Oh it's tuned! Vince sent me an updated tune last Friday. Had a chance to take it for like 2 short test drives. Then next day problems began. Guessing vibrations caused the O2 sensor wiring to rub away on that bolt or something. BOO! no boosting again :(
 

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Discussion Starter #18
awesome. id put money on that being the problem. and hey, you're closer to boosting than i am. lol
i keep changing my mind though. now i just want to go lower, coilovers and wheels are next on my list. this week anyway. :laugh:
yeah dude I guess, least I've felt the boost :p but still, it's almost worse having boost and NOT being able to use it :'(

anyways if you are planning on keeping your car for a decent amount of time you should def. consider getting boost :D

---------- Post added at 11:06 PM ---------- Previous post was at 11:06 PM ----------

heading to bed now...I'll let you know how unplugging the O2 sensor works out for that fuse :p
 

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hey bro, how did things turn out?
and ya, ive considered boosting many times. would def. sc if i did, pieceing together cheap sounds good. same with the inherant reliability of using the gm parts. plus i just i loooove the sc whine. gonna wait till i find a project car to go nuts with boosting. and keep the ol 2.2 for dd.
 

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hey bro, how did things turn out?
and ya, ive considered boosting many times. would def. sc if i did, pieceing together cheap sounds good. same with the inherant reliability of using the gm parts. plus i just i loooove the sc whine. gonna wait till i find a project car to go nuts with boosting. and keep the ol 2.2 for dd.
lol this IS my 2.2 Daily Driver project haha

my next car (provided this one doesn't explode in 2-3 years) is a 370Z summer/occasional car, which I hope to TWINturbo eventually :D

well the problem has not happened again the past 2 days driving back and forth to the train, I even have been going into boost no problem. Reason being (i'm pretty positive) is because I wedged a piece of electrical tape in between the O2 sensor end/wiring and the firewall bolt. I will be driving the balt up north tomorrow so that I can jack her up (or ramps), get underneath, undo downpipe from turbo so I can grind that stupid bolt off and maybe also dent the firewall in slightly to make the O2 sensor fit and have NO chance of electrical shorts :p

should be fixed hopefully by friday evening. Also gotta datalog again with Vince, since he said my last one was good but he'd like to see another after I fix this problem to make sure.
 
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