long trips..car dies
01-22-2008, 04:31 PM
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long trips..car dies My car has a TR230 cam and i had it tuned by Texas Speed. I drive it everyday to work about 14 miles one way (highway). I never have any problems always runs and idles fine. If i drive the car 40-50 miles and kill it, when i start the car back up it will not idle and wants to die. After many times of starting and killing it will finally start idleing again and i never have any problems with it until i drive 40-50 miles straight again. Anyone have any ideas this thing is driving me crazzzzy!
01-22-2008, 05:50 PM
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could be heat-soak affecting a temp based table in the PCM.
Try running it for 50 miles then shut it off for 2 hours & try starting it. If problem went away then very likely a "temp vs something" table in the tune.
It takes me at least 3 days to take care of all the little stuff in a tune so it's all right. If you got a dyno-tune then that explains the overlook.
Try running it for 50 miles then shut it off for 2 hours & try starting it. If problem went away then very likely a "temp vs something" table in the tune.
It takes me at least 3 days to take care of all the little stuff in a tune so it's all right. If you got a dyno-tune then that explains the overlook.
01-23-2008, 09:01 AM
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that must be what it is...i drove back home last night about 45 miles and then got back up this morning to go to work and it runs fine now. How or who can fix this problem?
01-23-2008, 09:07 AM
#5
had a chevy van 1990 do the same thing your getting heat soak to the pick up or the ecm or to the computer itself your loosing spark is what is happening fuel will still dump so dont flood out try insulating the computer first from heat then look at coil /ecm or if its not a trigger it is a pickup
01-23-2008, 09:18 AM
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For a real easy test, try pulling the IAT out of wherever
it sits and extend it out to somewhere that isn't seeing
motor & exhaust heat. Though I can't see why there's a
difference between 15 miles and 50.
it sits and extend it out to somewhere that isn't seeing
motor & exhaust heat. Though I can't see why there's a
difference between 15 miles and 50.
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01-24-2008, 02:14 PM
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if i unplug the iat sensor while running, should it run different. I ask this b/c i unpluged it while it was having a hard time idleing and nothing changed. I ran down to o-reillys and picked up a new iat and it started and is idleing high. i can unplug and plug back in the new iat and can here the motor change now.
01-25-2008, 08:55 AM
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well its constantly running bad now (will not idle) if i start it and it starts running bad and not idleing right I can turn the car off and then back on and its runs but idles high like 12-1400 rpm then slowly idles down. Oh and i never got a service engine light when i unpluged the iat while it was running.
