stalling at idel
03-24-2009, 05:37 PM
#1
1st Gear Member
Thread Starter
Join Date: Mar 2008
Posts: 53
stalling at idel
ok I recently installed mas unequal shorties an off road h pipe and flowmaster catback. MY car is stalling frequently at idel. I did not delete the smog system I just disconnected the hose and removed the metal tube that went to the factory cats. I checked my tps voltage output with the key on engine off and it is 1.5 volts, do I have a bad tps? What else should I check. Bad iac? Thanks
03-25-2009, 10:22 PM
#5
1st Gear Member
Thread Starter
Join Date: Mar 2008
Posts: 53
its an 87 gt...sd. It was having occasional stalling at idel issues last fall before I put it up for the winter, but its much more frequent now after the exhaust swap. I deff. notice it more when smog pump is running but it is never quite ideling perfect at the moment. I am going to remove the smog system when I have a little free time to spend on the car. Is it normal for the voltage output on my tps to be as high as 1.5 volts at idel? Thanks again for all your guys help!! I will try cleaning the throttle body and iac and see if this helps.
03-26-2009, 09:11 PM
#7
1st Gear Member
Thread Starter
Join Date: Mar 2008
Posts: 53
ok so I took off the iac and ran about a half can of carb cleaner thru it, there was a lot of crude in there.. The car does idel better, but it still stalls right after starting if I dont give a quick blip of throttle, then it is fine afterward untill next time I shut off the engine and restart.
03-26-2009, 09:25 PM
#8
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
check the fuel pressure and see if it holds in koeo mode and if it's fine, try a good seafoam treatment......carbon acts as a sponge and may soak up the fuel charge on initial start up and lean it out enough to cause a stall.