LarryA
New member
I am just about at my wits end. I'm getting the reduced power message and have very limited throttle control (1500 RPM max). I am getting 2 PCM Codes, P0443 and PO1518. I posted about the PO443 code but I believe it's not the problem (maybe caused by the problem). I think the problem is related to the PO1518 code, which is PCM to TAC module serial data circuits. I'm not sure about the troubleshooting methods to isolate the problem. The Car has a PS1 Procharger on it and is highly modified. The trouble started out as a random issue but is now doing it all the time. Will appreciate all input. Oh it's a 2000 coupe. Thanks, Larry
