running terrible

T

tmz93sc

Registered User
my 93 sc has me frustrated. car wants to stall when i come to a stop. i have to use the brake and accelerator at a light. checked for vacum leaks found none. put new heatsink under dis swapped the coilpack. i also unplugged the cam sensor tach dropped to zero and got a check engine light . coworker suggested intake manifold gasket ? car still has plenty of power and boost
 
tmz93sc said:
my 93 sc has me frustrated. car wants to stall when i come to a stop. i have to use the brake and accelerator at a light. checked for vacum leaks found none. put new heatsink under dis swapped the coilpack. i also unplugged the cam sensor tach dropped to zero and got a check engine light . coworker suggested intake manifold gasket ? car still has plenty of power and boost
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What method did you use to check for vacuum leaks ?

David
 
To check for vaccum leaks, you should have a smoke test done at a local shop. This can reveal all kinds of leaks. As far as the possibility of bad sensors contributing to your rough idle, you should check the codes. You can rent a diagnostic code machine/computer at the local auto parts store. Those two are much more efficient at narrowing down the issue(s) than throwing money at various parts.
 
scskydivin said:
To check for vaccum leaks, you should have a smoke test done at a local shop. This can reveal all kinds of leaks. As far as the possibility of bad sensors contributing to your rough idle, you should check the codes. You can rent a diagnostic code machine/computer at the local auto parts store. Those two are much more efficient at narrowing down the issue(s) than throwing money at various parts.
Click to expand...

+1 on the smoke test, works better than carb cleaner.
 
car seems to be running better now doesnt surge at a stop. i unplugged the iac valve car didnt stall. i unplugged it a few more times to make sure and it stalled. is the iac valve bad or gummed up? maybe a loose connection ?
 
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