2800-3k sputter and hesitation
#1
Full Member
Thread Starter
2800-3k sputter and hesitation
okay so this started happening when I was driving through a neigborhood and there was a dip in the road and I didnt see it then my car pretty much slammed to the ground, so I pulled over and checked everything under the car and everything was fine, but then this problem started.
The spark plugs are fine, I cleaned them numerous times, and cleaned all the grounds. Ive checked all the vac lines.. any ideas? Heres a video.
engine related mods:
emissions removed
Streetported motor
RB main pulley
MBC set to 10psi
Walbro 255
The spark plugs are fine, I cleaned them numerous times, and cleaned all the grounds. Ive checked all the vac lines.. any ideas? Heres a video.
engine related mods:
emissions removed
Streetported motor
RB main pulley
MBC set to 10psi
Walbro 255
#2
Moderator
iTrader: (1)
You might want to test the Boost Sensor and make sure the hose is well connected. And you say you cleaned the grounds but the most important one is the engine ground which is not accessible unless you pull the UIM. And perhaps you jiggled something loose in the converters. And also check the mounting of the coils to the fender. And for the heck of it test the TPS.
Last edited by satch; 10-21-13 at 06:35 PM.
#3
Full Member
Thread Starter
Yeah I took off the UIM and took some sand paper and made sure they had clean connections, and yeah I took a look at the boost sensor, looked fine, I'll check the coils too.
#6
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Thread Starter
so ive noticed whenever I try to hold a steady throttle will hesitate and feels like it loses power very briefly, doesn't really matter the rpm, I was cruising in 5th at 2k with -10 vac, maybe its a vac leak somewhere? tps maybe?
Last edited by Claytons91; 10-25-13 at 01:26 AM.
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#12
Full Member
Thread Starter
Alright so I got it fixed, turns out there was old gasket left on the UIM that was causing a leak, fix itm runs great now, but for some reason my car is idling around 2k
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