TurboTesh
Proven Member
- 83
- 4
- Jun 9, 2016
-
Mukwonago,
Wisconsin
Need some ideas guys.
Car starts after 2 or 3 cranks every time and jumps to usual 1k rm, but immediately drops to 200ish rpm and almost dies then jumps right back up to normal idle (1000 rpm cold, 800 warm) I refer to it as a stumble.
Car does this on cold and hot starts.
Can't remember when it started... but I have installed and baseline tuned FIC850's, 16g/tial, FMIC, AFPR & Walbro w/rewire, timing job, etc... using ecuflash (1999 ecu)
No boost leaks present.
Scaling is dialed in (706 scaling) and the trims are all +/- 5.
Compression is 165-175 across the board.
Plugs are BPR7ES gapped @ .26-.28
I tried w/ and without FPR solenoid, but no change.
Alternator puts out 13.5-14.2v depending on temps.
Is there something I missed in the tune? I hate when it does this, doesn't sound good, and it often leads to my belts squealing and it resets my gauge colors (memory voltage must drop too low).
Car starts after 2 or 3 cranks every time and jumps to usual 1k rm, but immediately drops to 200ish rpm and almost dies then jumps right back up to normal idle (1000 rpm cold, 800 warm) I refer to it as a stumble.
Car does this on cold and hot starts.
Can't remember when it started... but I have installed and baseline tuned FIC850's, 16g/tial, FMIC, AFPR & Walbro w/rewire, timing job, etc... using ecuflash (1999 ecu)
No boost leaks present.
Scaling is dialed in (706 scaling) and the trims are all +/- 5.
Compression is 165-175 across the board.
Plugs are BPR7ES gapped @ .26-.28
I tried w/ and without FPR solenoid, but no change.
Alternator puts out 13.5-14.2v depending on temps.
Is there something I missed in the tune? I hate when it does this, doesn't sound good, and it often leads to my belts squealing and it resets my gauge colors (memory voltage must drop too low).
