When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go hereXJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.
Here is how I understand it. The ECU case is already grounded internally. And the ECU gets its reference ground from the engine block through the harness. Most manufacturers want to try and shield the ECU from electrical noise in some way.. wether it be by having insulated bracketry to mount the case, or having the external chassis isolated from the internal ECU grounds via some sort of resistor set-up.
Most advice says to never ground the case if it can be helped. It may not effect anything but, it can affect shielding and hurt the ECU. Or, harm functioning. This is what I just read anyway...
Well I just hooked up the new ecu and it fired right up let’s hope it keeps doing good, I’m gunna keep starting and stopping it and test for if injectors stick open and if not then I’m gunna change some oil and finally do jeep things with my Jeep. This is my first jeep and first car actually it’s been an adventure but I’m loveing it
Yeah I’m so happy rn, ima change the oil and put it back together, also by any chance does anybody know the difference in ecu’s
that is the old original 89 one
and the green is the “new” one from the 88
the only difference I see is the sticker color and the last 3 digits and letter
01-24-2020, 06:01 PM
