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History.... 2003. E39. Stock. Changed plugs, fuel filter, air filter, MAFs and oil/filter. [OK, not in the same day, it took a bit] 80k miles, running well and not throwing codes.
However, on cold starts, she cranks for a bit, maybe 10 - 15 seconds. Then she'll catch, begins firing slowly for a couple seconds, then idles perfectly and has no performance issues. Does not choke off at red lights, runs very well. Stop, run in for an errand, come out and start her and she'll start fine, *maybe* a very slight, almost imperceptible delay while cranking, but if she's been sitting for a while, I get the delayed start.
- Thought it might have been the MAF, changed it.
- Crank position sensor?
- Fuel pressure seems fine, hit the release valve on the fuel rail, fuel went shooting out. We tried turning the key on, waiting a few seconds, turning it off, then turning it on again, waiting a few seconds then starting. It seemed to help a while ago, but now not so much.
Anything else I should look at?
Thanks!
However, on cold starts, she cranks for a bit, maybe 10 - 15 seconds. Then she'll catch, begins firing slowly for a couple seconds, then idles perfectly and has no performance issues. Does not choke off at red lights, runs very well. Stop, run in for an errand, come out and start her and she'll start fine, *maybe* a very slight, almost imperceptible delay while cranking, but if she's been sitting for a while, I get the delayed start.
- Thought it might have been the MAF, changed it.
- Crank position sensor?
- Fuel pressure seems fine, hit the release valve on the fuel rail, fuel went shooting out. We tried turning the key on, waiting a few seconds, turning it off, then turning it on again, waiting a few seconds then starting. It seemed to help a while ago, but now not so much.
Anything else I should look at?
Thanks!