Unable to get codes

[joeking]

I have a pinto with a 88 tbird swap. The i built the entire harness to spec using the diagrams you provide. Double and triple checked all pins and connections. Egr, boost solenoid, vss delete. I removed the excess wire from the dig return and ran the wire as per diagram. Now the car runs, there is definitely something "off" though. But, the ecu is not sending any codes. I know there should at least be the deleted codes. But nothing, the obd1 scan with koeo does nothing at all. Koer i can hear it running its diagnostics but still no codes or feedback of any kind. I have tried grounding the single pin on the self test, nothing. The voltage on single pin is 5-7volts. I don't know what it is supposed to be. Also i am very confused on the self test anyways as the wires clearly don't go to the pins on the reader. This makes no sense to me.

I had an la3, i assumed it must be "bad" after trying everything i could first, i ordered a la2 on Ebay. Problem is the same.

I am totally stumped now. I have checked vaccuum, reference wires, grounds, fuel pressure, new plugs wires gapped.30

The engine runs but under powered. It does make boost in neutral, so i am doing the timing today, although even if that is a problem i am at a loss on the ecu issue.

Any help would be greatly appreciated.

[Stinger]

You shouldn't ever have 7v anywhere. You've either got 12v or 5v under the hood depending on what you're checking (most sensors are 5v for example).

I don't know what you mean by "the wires clearly don't go to the pins on the reader", can you explain? That sounds like the likely culprit.

[joeking]

If you look at an odb1 scanner, there are 3 pins for the connector and a single wire. The 3 wire pin does not connect to the scanner completely. 2 of them go to a pin on the scanner and 1 goes to a blank. That is the way it is on every diagram i can find. It is the fuel pump wire that seems to go to a blank.

I am running a stand alone fuel pump, so i don't see why it would matter anyway. Just strange to me that it would plug into essentially, nothing.

I should have mentioned, when i test the single wire with the neg on wire and pos from battery it is 7ish volts, if i reverse the +/- it does read 5v like the ref wires.

I have seen things saying to ground the single wire to the battery and it may bypass something and get the ecu to show codes. That didn't do anything for me.

[joeking]

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[Stinger]

I see what you're saying now, nothing abnormal there.

The alternative is to use the method of jumping between two of the test port pins and getting it to spit codes out through the CEL. This would at least isolate the issue to the vehicle or the scanner.