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240 Hard Cold Starting - Checked usual suspects! 200 1988

posted by  someone claiming to be Alex Z on  Fri Feb 24 04:33 CST 2006 [RELATED]

Hi guys,

I have an '88 245 fitted with a B200E engine (which has K-Jet fuel injection, no AMM, no catalytic convertor and no O2 sensor).

I have a continued cold start problem. The car will often take 5+ seconds to start, and will almost stall (it sounds like it is running on 3 cylinders!) for 5-10 seconds, then the idle will hop back up to 900rpm and all will be fine.

This only happens 50% of the time when cold, and never when the engine is warm.

The car is regularly maintained by myself, and I have recently checked these specific items (upon guidance recieved by reading other posts):

Auxilary Air Valve
Cold Start Valve
Injector Seals
Air Filter
Fuel Filter
Visually checked for any vacuum leaks

Where do I go from here?

I see mentions of fuel pump & 'check valve' problems - how could I go about specifically troubleshooting these? When I turn the key to Position II (without starting the car) I could swear that I used to hear a brief whirring of what I assume was the fuel pump, but I do not anymore.

Many thanks in advance!!

Alex





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