My 1991 Audi Coupe with 20V 7A motor used to start such that the RPM would increase to 1200 and then settle at about 800.
The problem I need help with is that the car often needs throttle to start if it has been sitting for over 30 minutes. Even if it starts, the RPM doesn't jump to 1200 but just stays at about 800. If I start the car with throttle-assist, turn it off and then restart, it starts right up without throttle-assist, with RPM jumping to 1200 and then back down the 800. If I wait about 30 minutes, the RPM 1200 to 800 again does not occur and the car needs throttle assist.
The ISV is new and I have adjusted my idle speed/CO to spec. My fuel pump is new and primes well, FPR works, injectors are new. There are no vacuum leaks. There are no codes. My ten measuring blocks are within normal range. The output checks reveal that the ISV functions. Priming the pump a few times does not make a difference. The problem occurs with engine hot or cold.
What are your thoughts?
The problem I need help with is that the car often needs throttle to start if it has been sitting for over 30 minutes. Even if it starts, the RPM doesn't jump to 1200 but just stays at about 800. If I start the car with throttle-assist, turn it off and then restart, it starts right up without throttle-assist, with RPM jumping to 1200 and then back down the 800. If I wait about 30 minutes, the RPM 1200 to 800 again does not occur and the car needs throttle assist.
The ISV is new and I have adjusted my idle speed/CO to spec. My fuel pump is new and primes well, FPR works, injectors are new. There are no vacuum leaks. There are no codes. My ten measuring blocks are within normal range. The output checks reveal that the ISV functions. Priming the pump a few times does not make a difference. The problem occurs with engine hot or cold.
What are your thoughts?
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