Vehicle & Technical > Jeep

Grand Cherokee little problems

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dxmedia:
Don't know for sure, I'm still running the original system, but

http://cgi.ebay.co.uk/Jeep-Grand-Cherokee-ISO-Wiring-Harness-Adaptor-PC9-407_W0QQitemZ350305075984QQcmdZViewItemQQimsxq20100116?IMSfp=TL100116227002r18500

is what's needed if you've the amp under the passenger side rear seat.

I presume it's the wiring for the amp which is the issue, standard ISO wiring probably doesn't have everything for remotly switching the amp on and off and all that gubbins, IIRC there's 10 speakers in a ZG with the infinity sound system. A little more than a standard ISO 4.

The cheap ones only work if you don't have the amp, which I think is part of the infinity package.

sooki_blu:
All my speakers have Infinity Gold written on them, that mean its the amplified system?

dxmedia:
yes, you need the propper adaptor, not the fiver one from hafords.

luffy:
The crankshaft position sensor is unlikely to cause fluctuating idle as it either works or it doesn't.  The CPS usually fails when the engine is hot as it's affected by the heat from the exhaust/manifold and when it does fail the engine will just die.  (Happened to me at 60mph on a main road!)

Rough idle could be one of several things- O2 sensor, MAF, throttle body sensor or idle sensor to name a few.  Try disconnecting the battery first as has already been suggested to reset the PCM.

It's the same basic engine in the Grand and XJ Cherokee but the radiator hoses might be different due to the different body shapes and radiator positioning.

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