New Engine and New Stuttering Problem
03-07-05, 10:31 PM
#1
Full Member
Thread Starter
iTrader: (1)
Join Date: Sep 2004
Location: NY
Posts: 234
Likes: 0
Received 0 Likes
on
0 Posts
New Engine and New Stuttering Problem
I just finished putting the car back together after a 3 month project of rebuilding the trans and putting in a new engine. It started right up and after letting it idle for 30 to let the smoke from the anti-seize burn off, I took it out for a little drive.
After 20 miles of driving, the car would sometimes stutter and buck when I would give it gas (think of the 3000RPM hesitation only 10X worse) At the same time, the exhaust would be backfiring and the engine would sound as if it was running on one rotor. I could be cruising along in 3rd gear at 2000RPM and it would start doing it, I'd downshift to 2nd and it would continue. And then just as fast as it would start doing it, it would stop. Then the car would run fine for a few miles and start acting up again.
The whole time I was driving, I was trying not to make any boost to help break in the new engine. So when I say I'd give it gas, it's not WOT and the turbos spooled up. It's really just a small change in the throttle.
Other information if it helps - The car is totally stock. The ECU has been unplugged for 3 months now and someone said that it would revert back to a new engine setting.
Any help would be appreciated. Or maybe even a starting point on what you think it is.
After 20 miles of driving, the car would sometimes stutter and buck when I would give it gas (think of the 3000RPM hesitation only 10X worse) At the same time, the exhaust would be backfiring and the engine would sound as if it was running on one rotor. I could be cruising along in 3rd gear at 2000RPM and it would start doing it, I'd downshift to 2nd and it would continue. And then just as fast as it would start doing it, it would stop. Then the car would run fine for a few miles and start acting up again.
The whole time I was driving, I was trying not to make any boost to help break in the new engine. So when I say I'd give it gas, it's not WOT and the turbos spooled up. It's really just a small change in the throttle.
Other information if it helps - The car is totally stock. The ECU has been unplugged for 3 months now and someone said that it would revert back to a new engine setting.
Any help would be appreciated. Or maybe even a starting point on what you think it is.
Thread
Thread Starter
Forum
Replies
Last Post