Not a crazy call, I had the same on an MR2 Turbo with boost pipe leak issues. Charge pipe and boost leaks are apparently a known N54 problem.
https://www.n54tech.com/forums/showthread.php?t=13114
Not a crazy call, I had the same on an MR2 Turbo with boost pipe leak issues. Charge pipe and boost leaks are apparently a known N54 problem.
Sounds like an ageing coil breaking down..what does the fault code reader say?MarshMA10 wrote: ↑Wed Nov 22, 2023 2:09 pm Was this thread ever solved? I discovered today my e89 35i has a similar symptom to the original post here.
- No issues doing hard driving up to about 5500rpm
- No issues doing lots of higher RPM pulls (but not to redline)
- No cold start issues
- No hot start issues
- No idling issues
- No issues starting the car if it hasn't been driven for 5/10 days.
- Historically has never had an issue doing a full redline pull then changing up a gear i.e. significant rev drop.
- Motorway 2nd gear pull to redline then letting it spin down still in second gear - so revs were high for a long time = EML came on, limp mode activated.
- Coasted to a safe spot, engine idling lumpy, i.e. revving itself from 1000-1500rpm.
- Switched engine off, switched back on again, all fine
- No issues for rest of drive/day.
Car has HPFP replaced and has had injectors done too, but they were probably 5-7 years ago (will check later).
My bet is on the other coil packs 1-5..when one coil goes the rest follow shortly..MarshMA10 wrote: ↑Fri Nov 24, 2023 5:47 pm Pertinent service history items:
29/07/2020: 'New cylinder 6 coil pack' - £30
12/02/2020: Full service incl. Spark Plugs - £334
23/06/2017: Water pump - £lots
10/12/2016: All injectors and crank sensor - £lots
Scanners:
I have an OBDII scanner called a GoPoint BT1, which transmits to your phone, and I use an app called DashCommand for curiousness monitoring/basics - but this is probably not a top tier system. Does anyone else use this? I will scan the car with it today and see what it says for fault codes stored/historic.
I have access to a friend's top-flight scanner at Xmas time. He is a transport manager so this is a top of the line industry level scanner.
I have had the car scanned by another friend's £1000 handheld mechanic-style OBDII scanner job. No fault codes were present then.
I'm open to the idea of buying a better scanner if it's worthwhile.
100%.B21 wrote: ↑Fri Nov 24, 2023 6:37 pmMy bet is on the other coil packs 1-5..when one coil goes the rest follow shortly..MarshMA10 wrote: ↑Fri Nov 24, 2023 5:47 pm Pertinent service history items:
29/07/2020: 'New cylinder 6 coil pack' - £30
12/02/2020: Full service incl. Spark Plugs - £334
23/06/2017: Water pump - £lots
10/12/2016: All injectors and crank sensor - £lots
Scanners:
I have an OBDII scanner called a GoPoint BT1, which transmits to your phone, and I use an app called DashCommand for curiousness monitoring/basics - but this is probably not a top tier system. Does anyone else use this? I will scan the car with it today and see what it says for fault codes stored/historic.
I have access to a friend's top-flight scanner at Xmas time. He is a transport manager so this is a top of the line industry level scanner.
I have had the car scanned by another friend's £1000 handheld mechanic-style OBDII scanner job. No fault codes were present then.
I'm open to the idea of buying a better scanner if it's worthwhile.
Should be regarded as a replacement item like spark plugs …
Autodoc is the go to place if you are not in a rush..