I have a 87 quest and the HVAC panel display and lights work intermittently. So I took the panel off my 89 parts car. When I went to remove the one from my 87 there was a extra black wire which was not connected to the connectors it was connected to the side of the HVAC module (Where I can not remove it).That black wire is not on the 89 panel (CN3 pin 1) Here is the 89 panel (note the the black wire coming from CN2 pin 2 connected to CN4 pin 8) http://i1097.photobucket.com/albums/g350/apate1973

Stupid questions two prong is cts correct? Single on thermostat housing is for gauge? single under thermo housing? Are these interchangable for the single tab sensors? I have seen these go fron 12 bucks up to 55 or more....what ones are best in durability? also what color wires for single prong sensors and locations? anyone have diagram they could post....I could not find a previous post that had these pics, couldnt find on sos manuals too

I've been tossing around the idea of purchasing a wideband. I know, I know...I've been in the game long enough to have bought one of these already. But my primary concern was getting the car "stable", using my cash for that at first. Now I think I'm to the point where I need to know whats going on when stumbling and poor idling etc. occurs.   I've been searching around for the last 3 hours or so trying to decide which system to go with. I'm not worried about modding, and MAF translators and all

For some very strange reason. A few days ago when I started my car in the morning to go to school, the check engine light came on. I have not seen it on for quite a while and the last time I just changed the pre-cat 02 sensor. The speedometer doesn't work at all, but the tach does most of the time. I take it to autozone and they scan it and it shows four codes. Two for the different 02 sensors, one for the speed sensor, and one that said I have a high voltage power draw. I get the car home