cav back to stock... running INSANELY rich! help! - Performance Forum

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cav back to stock... running INSANELY rich! help!
Tuesday, July 18, 2006 8:39 AM
alright, most of you know that i sold the cavalier to a local buddy of mine.. put everything back to stock even the right down to the airbox.. problem is, that it is loading up thru the low RPM range and black smoke is pouring out the exhuast, car is loading up with fuel until the 3000ish RPM range where it clears out an pulls like a stock cav 2.4 should. we have replaced a decent number of parts on the car while trying to figure out why it might be loading up...

parts replaced:
-ecm
-stock reflash
-fuel pressure regulator
-throttle position sensor
-idle air control motor

only thing is the TPS is supposed to read 0.0 volts an we are still getting 1.0 volt... possibly bad throttle body?
all parts are either from GM themselve, or Standard which ive had pretty good luck with.

any help, ideas, ANYTHING would be appreciated because not only is my dad's garage stuck working on this thing, but we are barely getting paid to do any of it and its taking up crazy amounts of my dad's service garage time........... thanks guys


-marc

sold.. goin euro this time round

Re: cav back to stock... running INSANELY rich! he
Tuesday, July 18, 2006 9:13 AM
did you put the stock injectors in ?? not on your list is why i ask

tps at idle is susposed to be .45 or around there , higher voltage makes the pcm think the throttle body is open farther requiring more fuel


also pull the injectors , leaving them attached to the fuel rail , and pressureize the system and see if 1 of the injectors is stuck open







Re: cav back to stock... running INSANELY rich! he
Tuesday, July 18, 2006 10:49 AM
stock injectors were put back in..

injectors were pressurized.. they were all fine

only thing we can think of now is that the ecm wasnt reflashed properly, so we have another one coming (gunna send the old one back as defective), an we are going to do the flash ourselves with our Tech2.... well see where this brings us now

thanks man


-marc

sold.. goin euro this time round
Re: cav back to stock... running INSANELY rich! he
Tuesday, July 18, 2006 2:22 PM
are you reflashing the pcm to the vin for the car with out the s/c ?


the tech 2 has to get its info from a GM system off the internet







Re: cav back to stock... running INSANELY rich! he
Tuesday, July 18, 2006 3:26 PM
the pcm has been programed with the exact vin #

and yes, our tech 2 is hooked up to the internet.. we have all the capabilities as any GM dealer has, their programs, software, accessories..etc

we did the new pcm and it doesnt seem to be loading up at all anymore so we possibly got a defective one to start with.. everything seems dialed in correctly (02's, fuel curve, tps, etc) it hesitates sometimes but i think the plugs just need to be changed after the kid driving it so long loading up...

ill keep this post updated, the kid just left with the car about an hour or so ago an no problems yet

thanks man


-marc

sold.. goin euro this time round
Re: cav back to stock... running INSANELY rich! he
Tuesday, July 18, 2006 3:35 PM
cool

so howd you guys manage to get axcess to GM's stuff ??






Re: cav back to stock... running INSANELY rich! he
Tuesday, July 18, 2006 4:34 PM
^^^ Been trying ti figure that out myself.
Re: cav back to stock... running INSANELY rich! he
Tuesday, July 18, 2006 6:54 PM
rhode island's Tech2 dealer sells it all.. just usually cost around 5 g's for everything. gives you access to all GM's online programs like Alldata, iTan, etc


-marc

sold.. goin euro this time round
Re: cav back to stock... running INSANELY rich! he
Tuesday, July 18, 2006 10:04 PM
any links to the place ?








Re: cav back to stock... running INSANELY rich! he
Wednesday, July 19, 2006 4:25 AM
[quote=97cavie24ls(JDM&00s/c sedans™)]any links to the place ?

x2



Re: cav back to stock... running INSANELY rich! he
Wednesday, July 19, 2006 9:39 AM
Scorpio1 (blu03lambocavi) wrote:[quote=97cavie24ls(JDM&00s/c sedans™)]any links to the place ?


x2

x3





RIP JESSE GERARD.....Youll always be in my thoughts and prayers...




Re: cav back to stock... running INSANELY rich! he
Wednesday, July 19, 2006 11:04 AM
make sure you change the oil...... I'm willing to bet its loaded up with Fuel..... dont want it spinning a rod bearing now do we?




SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
W41 BOI - '78 Buick Opel Isuzu W41 Swap

Re: cav back to stock... running INSANELY rich! he
Wednesday, July 19, 2006 12:21 PM
oil was already changed cuz i knew that would be a problem right from the start..

links wont be any good without the stack of cd's that come with the Tech2.. they run off the D: drive an connect to the internet

and kid called me late last night, still acting up... we are gunna change the injectors next, thats pretty much the only thing we havent changed yet

an trust me, i wish i could hook all u guys up wit the stuff but im not about to try an burning those cd's


-marc

sold.. goin euro this time round
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