Does this make sense? Fuel pump shut down via distibutor???
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Joined: Oct 2002
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From: Houston TX
Does this make sense? Fuel pump shut down via distibutor???
First I want to thank all of you for help so far trying to diagnose why I cannot get my new 383 running. I found a repaired a couple of the items, but it still will not drive.
Yesterday I decided to see if I was a tooth off on the distribuitor. I had my son tap the key to get it to drop in. As we were doing this, I noted that the fuel pump shut down and kicked out a low voltage error.????
To prove this, I pulled the distributor and jumpered all the connections so I could manually turn the rotor, and sure enough as I turn it, it shuts down the fuel pump.
Maybe this is all part of the ECM control, but since I am hunting a ghost here, I am questioning everything. Perhaps my distributor is gone???
Thanks
RAC
Yesterday I decided to see if I was a tooth off on the distribuitor. I had my son tap the key to get it to drop in. As we were doing this, I noted that the fuel pump shut down and kicked out a low voltage error.????
To prove this, I pulled the distributor and jumpered all the connections so I could manually turn the rotor, and sure enough as I turn it, it shuts down the fuel pump.
Maybe this is all part of the ECM control, but since I am hunting a ghost here, I am questioning everything. Perhaps my distributor is gone???
Thanks
RAC
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Joined: Jan 2003
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From: Summerland B.C. Canada
Re: Does this make sense? Fuel pump shut down via distibutor??? (HoustonBob)
I believe the fuel pump only primes for 2 seconds and then waites for cranking. While cranking ECM looks for oil pressure before it energizes fuel pump. Have you tested the oil pressure switch ?
I could email you the diagnostic procedures if you tell me what ones you need.
I could email you the diagnostic procedures if you tell me what ones you need.
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Joined: Sep 2000
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From: The Top of Utah
Re: Does this make sense? Fuel pump shut down via distibutor??? (AGENT 86)
I believe the fuel pump only primes for 2 seconds and then waites for cranking. While cranking ECM looks for oil pressure before it energizes fuel pump. Have you tested the oil pressure switch ?
I could email you the diagnostic procedures if you tell me what ones you need.
I could email you the diagnostic procedures if you tell me what ones you need.
To prove this, I pulled the distributor and jumpered all the connections so I could manually turn the rotor, and sure enough as I turn it, it shuts down the fuel pump.
RACE ON!!!
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From: Houston TX
Re: Does this make sense? Fuel pump shut down via distibutor??? (CFI-EFI)
I was actually setting the timing, lining up post 1 when I first noted the fuel pump went off.
To see if I was loosing my mind, I pulled the distributor out completely again and reconnected everything, via test leads. Jumpering is a bad choice of words. This way I could rotate the rotor and try to learn what was going on.
It sounds like it makes sense that it may shut down the fuel pump, since I was manually rotating the rotor and the motor was sitting still, (no oil pressure), ever got there.
Damn, I thought maybe I found something. I think I am loosing this battle slowly but surely. Its going to kill me to have to flat bed this thing somewhere!
RC
To see if I was loosing my mind, I pulled the distributor out completely again and reconnected everything, via test leads. Jumpering is a bad choice of words. This way I could rotate the rotor and try to learn what was going on.
It sounds like it makes sense that it may shut down the fuel pump, since I was manually rotating the rotor and the motor was sitting still, (no oil pressure), ever got there.
Damn, I thought maybe I found something. I think I am loosing this battle slowly but surely. Its going to kill me to have to flat bed this thing somewhere!
RC
