what would cause car to shut down when going into closed loop?
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Registered User
Joined: Apr 2000
Posts: 564
From: Silver Spring ,Md.
what would cause car to shut down when going into closed loop?
I'm posting this for a friend. The car is a procharged, 383, 95, m6 firebird. The car idles fine until closed loop then it just shuts down. Need help please. If don't know what other info you might need so please feel free to ask. Thanks
Registered User
Joined: Feb 2003
Posts: 641
From: St. Charles, Il
Re: what would cause car to shut down when going into closed loop?
defintately need more info. Does it just start running pig rich and die out? or lean? or does it shut off right away? any codes? I believe you have to run a special map sensor and tune the computer for boost. did he do that?
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Joined: Jul 2004
Posts: 337
From: GERMANTOWN, MARYLAND
Re: what would cause car to shut down when going in to closed loop?
I'm also a friend of his and i can answer those two question for you quick.
No its not running rich, its not cutting out and then it shuts off, as soon as it goes to open loop it just dies. When you try to start it it starts for a brief second and then shuts right off. when the car gets cold it starts and runs but as soon as it goes in closed loop it cuts it off like it has a turbo timer on the car or something. The car i dicently tuned on a dyno and was running fine up untill few days ago when it radomly started doing this. We already tried a coil off my car along with my ingition module and PCM...still does the same thing. Coolant temp sensor seems to work fine, injectors on the scanmaster seem to be fine as well.
i think thats enough info
WHAT UP DAVE
long time no see man, check out my thread about my crank 
No its not running rich, its not cutting out and then it shuts off, as soon as it goes to open loop it just dies. When you try to start it it starts for a brief second and then shuts right off. when the car gets cold it starts and runs but as soon as it goes in closed loop it cuts it off like it has a turbo timer on the car or something. The car i dicently tuned on a dyno and was running fine up untill few days ago when it radomly started doing this. We already tried a coil off my car along with my ingition module and PCM...still does the same thing. Coolant temp sensor seems to work fine, injectors on the scanmaster seem to be fine as well.
i think thats enough info
WHAT UP DAVE
long time no see man, check out my thread about my crank
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