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fongo · 10-06-2004, 02:11 PM

Hi everyone,
Not too long ago, I posted a thread on a problem I had at cold start. My 93 GT will start and then stall. After getting it to start propertly (giving it some gas..) it would hesitate and jerk a bit during driving. The idle would also be choppy too. But one it was warm, the problem would go away.
It was suggested to change the ECT, ACT sensors and look into the 02 sensors too. Well, I popped in new ECT, ACT sensors and even a new EGR valve (the guy at the DMV told me I was failing the NO on emmissions). I'd figure the 02 sensors are ok since I just replaced them about 1 year and half ago. I also replaced the distributor cap, checked plugs etc.
Well...after all these replacements, the problem hasn;t gone away! FYI, no 'Check Engine' lights go on, all the diagnostics appear to be ok. I did have problem scanning the EEC-V, but I probably ended up with the wrong scanner anyway.
Could anybody give me any other suggestions on what could the problem be? The mechanics down the block insist it's the 02 sensors...Could it be a compression problem? Need some feedack!
Ciao!

10-06-2004, 02:11 PM	#1
fongo Registered Member Join Date: Jan 1999 Location: Farmingdale, NY Posts: 139	help...stall at coldstart & jerk at drive Hi everyone, Not too long ago, I posted a thread on a problem I had at cold start. My 93 GT will start and then stall. After getting it to start propertly (giving it some gas..) it would hesitate and jerk a bit during driving. The idle would also be choppy too. But one it was warm, the problem would go away. It was suggested to change the ECT, ACT sensors and look into the 02 sensors too. Well, I popped in new ECT, ACT sensors and even a new EGR valve (the guy at the DMV told me I was failing the NO on emmissions). I'd figure the 02 sensors are ok since I just replaced them about 1 year and half ago. I also replaced the distributor cap, checked plugs etc. Well...after all these replacements, the problem hasn;t gone away! FYI, no 'Check Engine' lights go on, all the diagnostics appear to be ok. I did have problem scanning the EEC-V, but I probably ended up with the wrong scanner anyway. Could anybody give me any other suggestions on what could the problem be? The mechanics down the block insist it's the 02 sensors...Could it be a compression problem? Need some feedack! Ciao! __________________ 1993 GT, MAC Fenderwell Cold Air Induction; Accel dist.,Splitfire plugs, BBK: 1 5/8 unequal length shorties, hi flow H-pipe w/ cats; Flowmasters 2 chamber American Thunder catback system, Motorsports 3-core radiator, 180º thermostat, BBK adj. clutch quad...the rest is bone stock!..but more mods to come!!