b18b1 swap, p75 ecu no power to fuel pump
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b18b1 swap, p75 ecu no power to fuel pump
Recently bought a 95 Honda Civic with a full 94 Integra LS front end (b18b1 with 5 speed, power steering, a/c, custom integra/civic fenders, integra bumper)
The guy I bought it from did all the work himself, with the help of his cousin or brother cant remember, none of which is done very professional at all. Anyway, I don't know what extent of wiring modification he went to, only wiring I know for sure is custom is for all the lights on the front of the car.
However, just last week after taking it for inspection it died on the highway (lost spark). After getting it towed back to my house, I replaced the whole distributor, now it runs and drives again. However in that process while I was on the highway I decided to take a paper clip and get the code for the CEL that has been on since I bought the car, and it was throwing one code, code 19 (A/T Lock up solenoid or something like that)
So I figured that just means I needed to get a manual transmission ecu, since the ecu that was in the car was for the original engine and transmission. That being said I went ahead and picked up a P75-A01 ECU off of eBay, assuming it would work fine, except when I plugged it in and went to start the car there was only one issue. There was no fuel delivery at all. No sound of the fuel pump priming so I cant get the car to actually start with the P75 ECU. All it would do is crank, no start. Was able to get the car to start for about half a second on starting fluid, but just dies instantly. The CEL goes out, so it doesn't throw any codes. I'm kind of at a loss right now because I don't even know where to begin to figure out why the ecu doesn't send any power to the fuel pump.
Like I said, with the Civic ECU the fuel pump primes and fires right up so I know the pump is good, I tested spark so I know its got spark.
I don't own a multi meter, which I should probably invest in one, but even if I did I still wouldn't know what to look for. If anybody could point me in the right direction, I would greatly appreciate it.
Civic ECU P06-A52
The guy I bought it from did all the work himself, with the help of his cousin or brother cant remember, none of which is done very professional at all. Anyway, I don't know what extent of wiring modification he went to, only wiring I know for sure is custom is for all the lights on the front of the car.
However, just last week after taking it for inspection it died on the highway (lost spark). After getting it towed back to my house, I replaced the whole distributor, now it runs and drives again. However in that process while I was on the highway I decided to take a paper clip and get the code for the CEL that has been on since I bought the car, and it was throwing one code, code 19 (A/T Lock up solenoid or something like that)
So I figured that just means I needed to get a manual transmission ecu, since the ecu that was in the car was for the original engine and transmission. That being said I went ahead and picked up a P75-A01 ECU off of eBay, assuming it would work fine, except when I plugged it in and went to start the car there was only one issue. There was no fuel delivery at all. No sound of the fuel pump priming so I cant get the car to actually start with the P75 ECU. All it would do is crank, no start. Was able to get the car to start for about half a second on starting fluid, but just dies instantly. The CEL goes out, so it doesn't throw any codes. I'm kind of at a loss right now because I don't even know where to begin to figure out why the ecu doesn't send any power to the fuel pump.
Like I said, with the Civic ECU the fuel pump primes and fires right up so I know the pump is good, I tested spark so I know its got spark.
I don't own a multi meter, which I should probably invest in one, but even if I did I still wouldn't know what to look for. If anybody could point me in the right direction, I would greatly appreciate it.
Civic ECU P06-A52
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Joined: Nov 2024
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Re: b18b1 swap, p75 ecu no power to fuel pump
The ECU should’ve been known good and working, the seller on eBay said it came out of a car that started and ran fine, seller also has 100% positive feedback.
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From: The South - Roll Tide !!!
Re: b18b1 swap, p75 ecu no power to fuel pump
Seriously ?!? Well, what do I know. Maybe you should contact the EBay seller and request a resolution to your problem then.
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