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I was driving several weeks ago, I pulled over, shut the engine off for about 10 minutes, it would not start afterwards. Called AAA, I was able to check for spark and the timing belt was fine. When the tow truck driver came, he asked me if the engine was getting gas. I told him I had no way of checking, he lay next to the car, after giving the gas tank a couple of good smacks, it started right up. He mentioned the in-tank gas pump seemed to be going out. I replaced the in-tank pump, switched the radio supressor relay with the fan relay, checked the relays under the ashtray, everything seems fine, but the car won't start. I can't hear the inline pump come on. I already ordered the RPM sensor. There are a couple of odd details: if I remove and tap the OD relay, then the car seems like it wants to start; the car will run for a few seconds if I shoot starting fluid in the intake(I assume that if the RPM sensor was dead, it would not run no matter what); I disconnected the fuel line from the fuel rail and no gas comes out when I crank the engine, I don't know if the RPM sensor is telling the gas pump not to run if the sensor is dead. The car is a 91 945T with 220K, I've had it for about 25K, have no idea of previous work done. Before this, the car had been running great.
Please help, I have replaced engines, trannys, clutches, etc; but I can't diangnose worth a damn!
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