jacob5m

Hi,

my '01 acura cl has trouble starting after long drives and moderate heat temps. . the car wouldnt idle correctly, almost sputtering but with gas it eventually catches. I replaced the fuel relay but the issue still occurs.

any ideas on what the issue may be? The main relay?

Thanks for your help,
jacob

YeuEmMaiMai

idle air control valve?
vacuum leak?
fuel pressure regulator


mileage on car?

CL-S progression 01

iTrader: (2)

cars can idle with a vac leak when col cause everything is running in "open loop" cycle.. this is where the car has predetemined perameters that is follows until everything heats up and the the sensors take over and the car functions off that..

so if it starts in the morning when cold, and idles rough or idles high then u almost certainly have a vac leak.
check the intake system, check the boot that connects the vsa to the intake system, and check everywhere else slowly and thoroughly.

grab things and move them a bit which may make a small crack on a line visible.

if u dont have a vac leak then i would look into the IAC.

when the car is running fine, disconnect and see what happens... when the car is acting up, then remove the iac connector again and see if there is a change... if there is not its likely the iac i would think

jacob5m

My Cl has 95k miles

The car runs fine on cold starts just when the car ha been running for about an hour. So it may be I iac. Can you tell me where it is and how to take it out


Thanks

poisx7

iTrader: (1)

I think it sounds like IACV issues.
also maybe sea foaming the tank might help a lil.

jacob5m

Hey, I took my car into the dealer and it was the IACV (clogged). Thanks for all your help!!

stephenhaze

Had similiar problem. Mine would idle when just started but would stall out while driving if clutch was pushed in. Cleaned idle air valve and problem was solved.