2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

new problem! yayyy!....

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Old 11-15-2011, 12:28 AM
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Exclamation new problem! yayyy!....

Okay so I finally got my car running again, but under full throttle it goes fine until I let off at high RPMs and just dies... I have to sit and wait several minutes before starting it again or it wont start. The car runs completely fine at idle and regular driving, doesnt run hot, doesnt shake, nothing. I have no clue what it could be. Please help! Thankss!
Old 11-15-2011, 10:15 AM
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Any codes? Sounds like the fuel cutoff isn't working and the engine is getting flooded with fuel when you let your foot off the gas. Never heard off this before but I would look into the aftermarket tune if you're tuned, a sticky injector, or maybe something's up with the throttle body or tps sensor. Just some ideas, bump so someone can help this guy out
Old 11-15-2011, 10:15 AM
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Ask Sarah
Old 11-15-2011, 10:18 AM
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Originally Posted by demento
Ask Sarah
Hahaha
Old 11-15-2011, 11:05 AM
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Originally Posted by demento
Ask Sarah
She can tell you what's wrong with your car by giving her your vin number, lmao
Old 11-15-2011, 12:10 PM
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I don't get it, haha. And yes it throws a code every once in a while, but the CEL will go on and off. It's off now, but who knows it might come back on in an hour. haha.
Old 11-15-2011, 12:27 PM
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Originally Posted by mason753
I don't get it, haha. And yes it throws a code every once in a while, but the CEL will go on and off. It's off now, but who knows it might come back on in an hour. haha.
Go to autozone and get the code scanned for free. it's probably still stored in the computer even though the cel is gone. Then we can help you
Old 11-15-2011, 02:21 PM
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My car would do this in the colder weather. 2.8 on gm st.2 tune, it would jus die after a nice floiring, not often but sometimes, then utd ve luke 10 min hefore itwould start
Old 11-15-2011, 02:23 PM
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Originally Posted by seekNdestroy
My car would do this in the colder weather. 2.8 on gm st.2 tune, it would jus die after a nice floiring, not often but sometimes, then utd ve luke 10 min hefore itwould start

Fergot to add. Once I moved to fla from ohio it was fine n haven had it once
Old 11-15-2011, 03:11 PM
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When I try to start it back up after it does this, it will shake reallyy bad and sound like crap for about 2 seconds then die again. After I wait about 5 minutes and start it back again, it runs like a champ. without flooring it of course.
Old 11-15-2011, 04:34 PM
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Used AutoTap to diagnose it, the code it was throwin was Crankshaft position Sensor,, I don't believe that would be the reason this is happening.. Checked all the vacuum lines and theyre fine, any ideass???
Old 11-16-2011, 12:51 PM
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Originally Posted by mason753
Used AutoTap to diagnose it, the code it was throwin was Crankshaft position Sensor,, I don't believe that would be the reason this is happening.. Checked all the vacuum lines and theyre fine, any ideass???
Umm why don't you think a bad crankshaft position sensor won't make your car run like crap
Old 11-17-2011, 03:04 PM
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It was showing the same code on the motor I had before and it was fine under wot..
Old 11-17-2011, 03:19 PM
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If the crankshaft signal from the sensor to the ecu, due to a bad sensor, is interupted the car will shut off.
Old 11-27-2011, 04:39 PM
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update: replaced the crankshaft position sensor.. Still dies. even worse than before. I go to take off in first and around 3000 rpms it just dies.. Tried to start it back up and it shakes really bad..
Old 11-27-2011, 04:42 PM
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Dont you have to do a case relearn when you change that sensor
Old 11-27-2011, 04:44 PM
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I'm sorry.. I don't know what that is.. Haha. Would you like to shed some light on this so called "case relearn"? Thanks
Old 11-27-2011, 04:45 PM
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Did you unhook the battery to reset everything?
Old 11-27-2011, 04:48 PM
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thought case relearn was when you switch pcms
Old 11-27-2011, 04:48 PM
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Originally Posted by Superbalt06
Did you unhook the battery to reset everything?
yes I did.
Old 11-27-2011, 04:50 PM
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find someone with hpt to log it to see exactly what's goin on
Old 11-27-2011, 04:53 PM
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No one around here has it.
Old 11-27-2011, 05:03 PM
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Will AutoTap work?
Old 11-27-2011, 06:00 PM
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Originally Posted by mason753
Will AutoTap work?
Not sure. I know you can do a case relearn with the interceptor or you can go to the dealership
Old 11-27-2011, 06:09 PM
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you can't do a relearn with the interceptor lol...
there's plenty of people in texas with hpt also.


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