Looking to replace ecm, which brand do I buy
Thread Starter
Instructor
Joined: Aug 2015
Posts: 129
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If you haven't changed the pump yet then check the voltage on the fuel pump connector with it running. Make sure you're getting full battery voltage to the pump. No pump will fix it if there is a wiring problem.
Adjusting the regulator having no effect could mean the pump is producing so little pressure it's just dead-heading instead of over-powering the regulator.
Adjusting the regulator having no effect could mean the pump is producing so little pressure it's just dead-heading instead of over-powering the regulator.
Heel & Toe
Joined: Oct 2012
Posts: 15
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I agree with checking voltage, didn't think about that but the 85 pump is a worthwhile upgrade. The stock pump just barely puts out enough pressure. As far as wiring, I wired mine as normal. Are you also replacing the fuel pickup sock, with that much stuff in the tank it wouldn't be a bad idea after cleaning everything out.
Thread Starter
Instructor
Joined: Aug 2015
Posts: 129
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I agree with checking voltage, didn't think about that but the 85 pump is a worthwhile upgrade. The stock pump just barely puts out enough pressure. As far as wiring, I wired mine as normal. Are you also replacing the fuel pickup sock, with that much stuff in the tank it wouldn't be a bad idea after cleaning everything out.
Heel & Toe
Joined: Oct 2012
Posts: 15
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I believe that is a noise filter not a resistor and I took mine out for two reasons, 1 another connection to possibly fail and 2 I'm not using the original radio so it's not needed.
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Instructor
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Safety Car
Joined: Oct 2008
Posts: 4,022
Likes: 30
From: Los Angeles CA
Thread Starter
Instructor
Joined: Aug 2015
Posts: 129
Likes: 0
Thread Starter
Instructor
Joined: Aug 2015
Posts: 129
Likes: 0
If you haven't changed the pump yet then check the voltage on the fuel pump connector with it running. Make sure you're getting full battery voltage to the pump. No pump will fix it if there is a wiring problem.
Adjusting the regulator having no effect could mean the pump is producing so little pressure it's just dead-heading instead of over-powering the regulator.
Adjusting the regulator having no effect could mean the pump is producing so little pressure it's just dead-heading instead of over-powering the regulator.
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Thread Starter
Instructor
Joined: Aug 2015
Posts: 129
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Thread Starter
Instructor
Joined: Aug 2015
Posts: 129
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Burning Brakes
Joined: Mar 2010
Posts: 938
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From: Valdosta Georgia
Actually, I'll send you the entire FPR I have. You'll need a new diaphragm but my housing, spring and screw are in great shape. I was getting 15 psi from it on my car. You pay shipping and its yours.
Last edited by Drawmain; Sep 21, 2015 at 11:07 PM. Reason: added info
Thread Starter
Instructor
Joined: Aug 2015
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Check the screw to ensure it isn't stripped. Maybe stretch the spring a little (not much at all) to get more spring pressure. I have a spare spring I can send you, just swapped over to a VAFPR and 90 lb injectors on my heavily modded CFI.
Actually, I'll send you the entire FPR I have. You'll need a new diaphragm but my housing, spring and screw are in great shape. I was getting 15 psi from it on my car. You pay shipping and its yours.
Actually, I'll send you the entire FPR I have. You'll need a new diaphragm but my housing, spring and screw are in great shape. I was getting 15 psi from it on my car. You pay shipping and its yours.
Safety Car
Joined: Oct 2008
Posts: 4,022
Likes: 30
From: Los Angeles CA
Burning Brakes
Joined: Mar 2010
Posts: 938
Likes: 15
From: Valdosta Georgia