[edited by crxfisher --bumping is not allowed on this site. I am modifiying your original post to put it into paragaphs. It's a lot of information to digest in one big chunk, so that should help the readability.]
a little help for noob please
i hoping you all can help me out with a problem that i have ran into. my car is a 1990 crx DX. i but a d16a9 in the car and did the conversion from DPFI to MPFI.The car would idle and that was about it, anytime i stepped on the gas it would rev fine for a little and eventualy die out after that. I belive it was running way to rich. The only code thrown was code 11. I tried to wire in the IMA sensor (EDM spec PM7 ecu).
There was no more codes being thrown but same as it was doing before. I went through and made sure the basics were there like spark, fuel, and air. All checked out even though the car was running a little rich.
Since I butchered the crap out of my dx main harness i firgured it would be easier to get a new one and just replace it and start over from sctach. The only harness I could get a hold of came from a 89 crx si. Not only did I get the main harness I also got the rear harness, the engine harness, the cluster harness, and a few other harness. I installed the the main si harness this weekend and the only connector that did not match up is the one that ties the main harness to the rear harness (besides the engine harness which i will take care of this weekend). The connectors are called c402on the main harness and c501 on the rear harness.
The problem i am running into is the one for the si has 13 pins and the one for the dx as 18 pins. i could just swap the rear harness but when i was doing ohms checks on the harness to see where the pins went a couple of them i had to go further down from the connector to get continuity which tells me there is a break some where. I'd much rather leave the dx rear harness in there and repin it to meet up with what the si main harness.
Hopefully somebody as a pinout for the harness or a wire run listing for it.
thanks
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yea i'm trying to put an 89 si harness into a 90 dx chasis. i have the shop manual for my year car. i was planing in changing the engine harness i just didn't want to change the rear harness becuase it was in pretty bad shape. i also have the gauge cluster harness if i end up needing to change that. the dx rear harness used a 18 pin connector and the si used a 13 pin connector. dx only used 12 pins and the si used 10. the two extra pins where used for somthing called a lock-up control solenoid valve. basically i matched up the pins by ohming out the si rear harness and then the dx harness while it was in the car (that was fun). so hopefully it's wired right i'll find out when i get the ecu in and finish up doing the rest of the wiring changes (hopefully this weekend). thanks for the help though and i'll be sure to check the harness difference on the gauge cluster when i go to put everthing back in.
no i needed to modify the 89 main si harness to mate to the 90 dx rear harness. my car is a 90 dx and the only harness i could get a hold of was a 89 si harness, luckily i got the whole lot from front to rear. the si rear harness was a bit shaddy so i wanted to use the dx harness, i got it squared away. thanks for the offer though.
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