Someone got an idea what could be wrong?
Problems:
- Idle at 0 km/h: When warmed up idles between 800-900 rpm, and it sounds like it alternates between smooth idle for about 5 sec and less smooth idle for about 3 sec.
- Idle while coasting is at 1k rpm constant and when car stops rolling goes down to 900 rpm.
- When accelerating heavily car misfires badly somewhere between 4 and 5k rpm.
- Used to rev up to 7.2k rpm and now does not rev past 7k rpm. Feels like a limiter is engaged.
- Sometimes randomly when warm the idle misfires and jumps between 750 and 1k rpm accompanied by loss of power while accelerating and backfire while engine breaking.
- When switched off and back on car starts fine, rev up to about 6k and allow rpm to fall back to idle and problem restarts.
No Codes on ECU - engine light does not light when misfiring
Parts swapped/new so far
- ICV
- TPS
- New Coil
- New Sparkplugs
- New Fuel filter
- Injectors
- Timing adjusted perfectly
- Compression test ok
- No vacuum leaks
Problems:
- Idle at 0 km/h: When warmed up idles between 800-900 rpm, and it sounds like it alternates between smooth idle for about 5 sec and less smooth idle for about 3 sec.
- Idle while coasting is at 1k rpm constant and when car stops rolling goes down to 900 rpm.
- When accelerating heavily car misfires badly somewhere between 4 and 5k rpm.
- Used to rev up to 7.2k rpm and now does not rev past 7k rpm. Feels like a limiter is engaged.
- Sometimes randomly when warm the idle misfires and jumps between 750 and 1k rpm accompanied by loss of power while accelerating and backfire while engine breaking.
- When switched off and back on car starts fine, rev up to about 6k and allow rpm to fall back to idle and problem restarts.
No Codes on ECU - engine light does not light when misfiring
Parts swapped/new so far
- ICV
- TPS
- New Coil
- New Sparkplugs
- New Fuel filter
- Injectors
- Timing adjusted perfectly
- Compression test ok
- No vacuum leaks