So I bought my car about a month ago and it runs great apart from during startup. It takes about 10-15 seconds of cranking on a cold start before it will fire off. I usually crank for 5 seconds, wait a few seconds and start cranking again. Occasionally I think the cold start injector is spraying because I'll get a sudden fire and then to back to cranking and eventually it will sputter for a bit and start up.
For the first minute or two of driving the engine surges and feels inconsistent. But once it's warmed up it runs great. I verified last week that the tank pump is pumping fuel during cranking. I can't verify if the car has an external fuel pump or not. It's an '87 325 with an eta, I don't see a pump under the car. I see a fuel filter and what may be an anti-drainback valve.
I don't want to just throw money at the problem and hope I fix it. I'd like to eliminate possibilities and make an educated decision. Does anyone have an idea what could be going on?
For the first minute or two of driving the engine surges and feels inconsistent. But once it's warmed up it runs great. I verified last week that the tank pump is pumping fuel during cranking. I can't verify if the car has an external fuel pump or not. It's an '87 325 with an eta, I don't see a pump under the car. I see a fuel filter and what may be an anti-drainback valve.
I don't want to just throw money at the problem and hope I fix it. I'd like to eliminate possibilities and make an educated decision. Does anyone have an idea what could be going on?
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