Hello everyone, I have been troubleshooting various electrical issues for months. I am fixing the issues as the occur, however one issue I cannot seem to determine the cause. A 1999 Grand Cherokee WJ with an intermittent low idle complaint. The idle drops to 300 rpm in drive only. I currently have no trouble codes. I have checked all sensor voltages and they are all correct. I did change the TPS and the IAC anyway, but the issue is still occurring. Not sure where to go from this point, so I re
I like your approach to the MAP and O2 sensor. Regarding replacement parts, the only O2 sensor I use is Mopar-packaged or the OE supplier. On my 4.0L XJ Cherokee, that supplier was NTK, and I could match the OE sensor's part number to an NTK item.
You commented on your experience with engine cooling fans. There are some aftermarket pieces that work, but electrics, and especially sensors, seem best when OE sourced.
As a footnote, I've had issues with an O2 sensor, CTS switch and a TP