Bruce Sinclair

My shark is getting harder and harder to start . It is actually flooding, heavy gas smell in exhaust. Just changed all plugs since it started giving me trouble. After many tries it will eventually start and belch out flooded engine smoke. It will run fine out on the road but yesterday and today would stumble every now and then at steady throttle settings. Yesterday after getting it started and letting it idle it would just stall after idling for 3-5 minutes. My vacuum hoses are new and I checked the system with a mity vac, all checks OK. Car has always started right up and run well. Timing belt was replaced 4k ago. I did find the throttle position switch for closed throttle (top) out of rig so that was readjusted but made no difference in the current problem . All replys will be appreciated it's my only car to get to work with. TIA ,Bruce

Ed Ruiz

Does your car's fule delivery system include a cold start valve? If so, could it be stuck open?

~ Merry motoring ~

Bruce Sinclair

I have no clue as to the age of the O2 sensor is there a way to check it with a voltmeter?

WallyP

While I am not expert on the AFC injection system on your '82, there are several possibilities.

Is the engine equally hard to start hot or cold? This might help determine the problem.

If it is hard to start both hot and cold, then you are getting a drastically rich mixture.

This could be a cold start valve that is either being commanded to stay on due to a bad Temp II sensor, or is sticking open.

It could also be a sticking air flow sensor.

It could also be a leaking fuel pressure dampener (front of engine) or pressure regulator (rear of engine). If there is any trace of fuel in the vacuum lines to these units, the units should be replaced.

Wally Plumley
928 Specialists www.928gt.com

Bruce Sinclair

This morning the car started and ran fine although hunting for a steady idle a little. BTW I had the fuel pump relay terminals 30 and 87 jumped.