I have an 1988 325is. Lately I've been getting a service engine light coming on for a few seconds (20) or so. The car doesnt seem to have as much power as it used to it seems like its hessitating while I accelerate. The idle is steady must of the time and the car wont stall. Any ideas of where should I start looking at?
Hesitation+service engine light
- Thread starter bmw325is
- Start date
vacuum leak(?)........ check the AFM first, just take it off the air box and stick your finger in there and see if it moves. if it doesnt, you have a problem that can usually be fixed with a few squirts of WD40. if it does move, check for vacuum leaks by spraying carb cleaner on the vacuum hoses, if the idle goes up when you spray on a certain location, you have a leak.
Thanks for the good information, I was'nt sure if the pump was suppossed to run when switch is moved to on position.
What step am I missing,
1. Jumped relay (Fuel pump)= Pump runs
2. Jumped other 2 wires with a light, coming from main relay while crankin= main relay works
According to the Bentley by doing this two tests both the main and the pump relay are working, so why it wont start (yes it has fuel
)
What step am I missing,
1. Jumped relay (Fuel pump)= Pump runs
2. Jumped other 2 wires with a light, coming from main relay while crankin= main relay works
According to the Bentley by doing this two tests both the main and the pump relay are working, so why it wont start (yes it has fuel
)