Posted: Wed Nov 08, 2006 12:30 am
It's running leaner now since I fixed the TPS and MAP sensors. It idled smoother and had more power at higher RPM when I supplied charging voltage to the fuel pump at work. I'm thinking the pump doesnt have enough flow right now and the PCM is trying to make up for it by lengthening my injectors pulse width. After giving the fuel pump full voltage I watched my injector pulse width get smaller and my idle started to smooth out.S8n wrote:Always good to figure out problems! Nice numbers also... When you get good 14 volts to the fuel pump, you're gonna run even richer though.Fast88Fiero wrote:Figured out some of my problems today! Had a bad wire to the TPS and MAP sensors, they had too much resistance. Replaced the wires and it started running better. I also found out that I'm only getting about 11.8V to the fuel pump due to excessive resistance in the fuel pump relay. I'm installing a new relay tomorrow. :thumbleft: