Intermittent sluggish start 95 LT1
Intermittent sluggish start 95 LT1
Okay, so since I did the head gaskets, optispark, wires, plugs, etc, the car has been running excellent.
However....
After I drive the car for awhile, and then shut it off for a bit, and then restart it, the engine is very sluggish, at low RPM's, almost like it is flooded. After a quick tap of the gas, the problem goes away. If I let it sit for an extended period of time, I don't seem to have the problem.
Could it be a faulty injector? I used PCcomm to scan it, as that is the only freebie software I can find that works with this 95 car. The only thing it came up with was an EGR fault. Checked all vacuum, and stuff to the EGR, and all appears to be fine.
Thanks in advance!
However....
After I drive the car for awhile, and then shut it off for a bit, and then restart it, the engine is very sluggish, at low RPM's, almost like it is flooded. After a quick tap of the gas, the problem goes away. If I let it sit for an extended period of time, I don't seem to have the problem.
Could it be a faulty injector? I used PCcomm to scan it, as that is the only freebie software I can find that works with this 95 car. The only thing it came up with was an EGR fault. Checked all vacuum, and stuff to the EGR, and all appears to be fine.
Thanks in advance!
Okay, so since I did the head gaskets, optispark, wires, plugs, etc, the car has been running excellent.
However....
After I drive the car for awhile, and then shut it off for a bit, and then restart it, the engine is very sluggish, at low RPM's, almost like it is flooded. After a quick tap of the gas, the problem goes away. If I let it sit for an extended period of time, I don't seem to have the problem.
Could it be a faulty injector? I used PCcomm to scan it, as that is the only freebie software I can find that works with this 95 car. The only thing it came up with was an EGR fault. Checked all vacuum, and stuff to the EGR, and all appears to be fine.
Thanks in advance!
However....
After I drive the car for awhile, and then shut it off for a bit, and then restart it, the engine is very sluggish, at low RPM's, almost like it is flooded. After a quick tap of the gas, the problem goes away. If I let it sit for an extended period of time, I don't seem to have the problem.
Could it be a faulty injector? I used PCcomm to scan it, as that is the only freebie software I can find that works with this 95 car. The only thing it came up with was an EGR fault. Checked all vacuum, and stuff to the EGR, and all appears to be fine.
Thanks in advance!
With the engine off, reach back and press the diagphram of the EGR. It should move smoothly and return smoothly. If it's sticky or rough feeling then pull it off...it's a couple of 13mm nuts...and take a look at the pintle. If it's carboned up then try cleaning it and reinstalling.
Seriously, you can't ingnore a fault just because it loks OK. Sometimes the simplest things will keep you looking for hours.
Good luck!
The EGR dumps exhaust gases into the intake manifold at cruise, never at idle or full throttle. If the EGR sticks open you;ll really notice it off the line. Try this
With the engine off, reach back and press the diagphram of the EGR. It should move smoothly and return smoothly. If it's sticky or rough feeling then pull it off...it's a couple of 13mm nuts...and take a look at the pintle. If it's carboned up then try cleaning it and reinstalling.
Seriously, you can't ingnore a fault just because it loks OK. Sometimes the simplest things will keep you looking for hours.
Good luck!
With the engine off, reach back and press the diagphram of the EGR. It should move smoothly and return smoothly. If it's sticky or rough feeling then pull it off...it's a couple of 13mm nuts...and take a look at the pintle. If it's carboned up then try cleaning it and reinstalling.
Seriously, you can't ingnore a fault just because it loks OK. Sometimes the simplest things will keep you looking for hours.
Good luck!
Gotta keep you straight, Mr. Hunter.
I believe it was a 32 code.
Today, I drove it for over 100 miles, parked it for about 3 hours for my daughters ice hockey game, and then drove it home another 100 miles. I was impressed, I averaged about 20 MPG.... LOL
Did not have any issues.....
Then I drove it to my friends, shut it off, and then about 10 minutes later, restarted it, and had the issue. I am sure the code is stored in there, so I will pull it tomorrow, and post it here. I am almost certain it was a 32. I thought the EGR system doesn't report to the ECM on these cars, how would that effect performace. Also noticed my knock count that was 0 was at about 1700 yesterday when I did the scan...
Today, I drove it for over 100 miles, parked it for about 3 hours for my daughters ice hockey game, and then drove it home another 100 miles. I was impressed, I averaged about 20 MPG.... LOL
Did not have any issues.....
Then I drove it to my friends, shut it off, and then about 10 minutes later, restarted it, and had the issue. I am sure the code is stored in there, so I will pull it tomorrow, and post it here. I am almost certain it was a 32. I thought the EGR system doesn't report to the ECM on these cars, how would that effect performace. Also noticed my knock count that was 0 was at about 1700 yesterday when I did the scan...
Thread
Thread Starter
Forum
Replies
Last Post
dbusch22
Forced Induction
6
Oct 31, 2016 11:09 AM
chevroletfreak
LT1 Based Engine Tech
202
Jul 4, 2005 05:00 PM
1LEThumper
Forced Induction
40
Jul 14, 2003 12:45 PM



