First I find a plug now idea where it goes to then I disconnect battery and wires to clean and had to rewire something previous owner did. I then see the negative battery cable hanging there. And that goes to the body of the frame? Now I see a vacuum line also chillin no idea where it goes cant find any thing that needs plugged in nothing.

 

This wire Is coming off of the same wire the plug for the alt

 

That plug is with the evap system I am pretty sure it should be plugged into the manifold almost right below where the picture was taken.. The plug looks like the a/c high pressure switch?? Not sure but look around a/c it should have one from the compressor and that one looks like the high pressure usually right under where the lines attach to the compressor

 

Ok yeah for the switch I looked around couldn't find anything ill keep looking.as for the that plug yeah thats where I plugged it in I guess the owner didnt use it idk cause where u plug it on was pluged off on both sides just middle one was being used.but now my ac vents work.

 

[QUOTE=Mikeythrash;2904841]Ok yeah for the switch I looked around couldn't find anything ill keep looking.as for the that plug yeah thats where I plugged it in I guess the owner didnt use it idk cause where u plug it on was pluged off on both sides just middle one was being used.but now my ac vents work.[/QUOTE You should pull the cluster and make sure the cel bulb is still their I bought one like that and the po pulled the bulb when I pulled the dash and put the bulbs in I had four codes all easy fixes but that light has to be off to pass insp. here in N.Y. and it can really help you isolate problems ,good luck. Bill

 

So I worked on it for about 4 hours rewired everything.noticed that the other end of the negative waa just hanging there.so I screwed it back to the frame.the wiring for the battery seems to be aftermarket and a thicker gauge. The battery as you can see is bosch 770 cca 25 watts:120.

Black ground is ground under the lip of the hood.other black negative I put down on the frame could not find where It was before.

Red positve one coming off power center other going into something that I have no idea if its factory or aftermarket. Pics
below.

Harness wiring seems to have a plug just chilling there.other plug goes alternator.

Any thoughts and help would be appreciated cause I am about to take it to a mechanic. Trying not to spend lots of money.

 

This sucks I just wanna fix this overcharge problem. Should I get a bigger battery? Or should I get factory battery wiring.

 

Wiring.

 

What about the wiring

 

As in the wiring is the issue, not the battery.

 

Yeah thats what I figured.and in that case what can I do about that.I would like to just get all new wiring.and in the one pic what is the battery positive hooked up too.does the postive and negative cables look ok you in the pic.u can zoom In to see.

 

Starter solenoid, which seems weird because I thought on late models it went to the PDC first. You really need to gander under the hood of another 99.

This late model stuff is a bit out of my comfort zone.

 

Ok

 

Why cant I just get the wiring harness and replace

 

Probably could. Go to the Junkyard.