New to turbo dodges.....looking for a couple ideas.
A buddy just picked up an 87 charger GLHS....car ran well when purchased...he put about 30 miles on it before he started having some problems. Car sat outside for 2 yrs before he bought it...but was started and ran occasionaly by the previous owner.
PO told us it would occasionally sputter and he would have to hit the passenger side kick panel and it would clear up. Well...it started sputtering after the 30 miles my buddy drove it...we pulled the kick panel to reveal the logic controller. It was a NAPA remmanned unit. Pulled the 2 plugs to find water in them....cleaned, dried, and put back together with dielectric grease.
Car started up and ran smooth.
At this point we noticed his volt gauge was reading low. So i checked the voltage at the battery and sure enough...it wasn't getting a charge from the alternator. A quick trip to autozone and an alt test showed it was junk...got a remmanned unit and we're on our way. Swap alternators and start the car up....14 volts at the battery....cool. Had him hit the lights and heater...still 14 volts. Cool. Drive the car outside in the parking lot and his gauge dropped down after 2 minutes of driving....checked volts at battery and alt not charging...hmmmm..so we gave up for the night.
So the car sits outside in the rain for a couple days...and we have to jump start it...starts up fine and runs good...getting 14volts...car idles for 2 minutes....all is good. Starts to give it gas and the volt gauge increases with engine rpm...goes up to 17 or so volts....not good. Shut it down, pull the REMANNED NAPA power module and clean both plugs and a couple battery grounds to the fenderwell. Both plugs in power module are wet and grounds are rusty.
Start car back up after re----'y....14 volts....ok....idles for 2 min....holds pretty steady. Gives the car some gas...and the volts increase up to 17 or even 18. (now in the initial car start up...the car can be rev'd and the volts DO NOT increase with rpm...stay at 14...then after about 2 minutes....it can no longer regulate volts.)
What the heck?
So i'm thinking the following.....bad NAPA remmaned power module
Or bad NAPA remmaned logic controller
Or bad wire somewhere. (not sure of this one)
Any thoughts/opinions/suggestions welcomed, and sorry for the long read.