E30 320i Starting & Idle Issue

[Altrezia]

Hey guys,

My 320 is getting harder and harder to start lately - and it hunts a lot when idling. It's a stock engine (pretty much).

Here's a video - last time I started it was yesterday at 5pm. The longer I leave it the harder it is to start.

I have a fuel filter and new spark plugs to go in, but I'm guessing this may be a FPR or pump issue?

Any ideas would be awesome.

Thanks again!

[youtube][/youtube]

[Grrrmachine]

Air leak, worn injectors, or fouled up spark plugs. I've never heard of a failed FPR, and a failed fuel pump will stop the car starting completely, not just "harder" to start.

Check here:

http://www.e30zone.net/e30zonewiki/inde ... oubleshoot

[Altrezia]

Cool. Thanks

[Speedtouch]

Try disconnecting the battery or ECU for an hour or so to reset it, then let it idle for at least 10 minutes, switch off, then take it for a drive throughout the rev range.

[Altrezia]

Actually, the batter does get cut all the time - it's a race car and the cut-off switch is used every time it's parked up.

[Speedtouch]

Well, that may explain your hunting idle - you need to give it 10 minutes of idle time to enable base idle settings to be learnt.

[Altrezia]

Thanks - that makes sense.

[Brianmoooore]

Connect a 47 ohm, 3W resistor across your battery isolator switch.