Hi everyone, hope you're having a good Sunday.

Last night I tried to get my GSR swapped CRX running. I was struggling to get it to run up until a point where I unplugged the map sensor and tried starting it and it popped off and idled fine (other than being 13-14 afr).

As soon as I plug the map in, it stalls out. I managed to get it to start for a second with the map plugged in but I think that's just because it disregards map sensor readings when cranking (I think).

I tried the firewall mounted map from the old D15 with the same results. I don't know if this sensor functions identically though so that may have been pointless.

There are a lot of aftermarket parts on the motor, rywire swap/tuck harness, skunk2 TB, ITR intake manifold, decapped LS fuel injectors from huntertuned, fuel rail, aem fuel regulator. The ECU is a P75 with VTEC added and a CobraRTP.

I guess my next step is to test the rywire harness but I have a hard time believing that would be the cause of the issue.

If anyone has any input it would be greatly appreciated. Thanks.

 

MAP and TPS plugs switched?

 

No. MAP sensor is reading fine in HTS.

I was able to get the engine to idle at around 14.4afr if I adjusted my scalar to like 500 with 0 offset, but it would run very rich if I gave it gas. With stock settings (372 scalar with -70 offset, at least according to HTS) it seemed to instantly force it to go to 20 or higher afr, instantly killing the engine.

I ordered a $40 PLM 4-bar map sensor to try. I hope it's decent as it's really all I can afford.