Surging idle in park or neutral
12-13-2021, 08:50 AM
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Model: Cherokee (XJ)
Surging idle in park or neutral
Hey, in case you missed it, after replacing many parts ( tps, ism, ehicle speed sensor, trans ctrl unit,etc.), problem was bad ecu. Idle would bounce from 750 to 1100 rpm .
when in neutral or park. If I shifted to neutral the rpm was good until the wheels stopped turning…..heck if a bug… but fixed now with used ecu from eBay for $100. Hope this helps someone as it was a real bugger to diagnose…
when in neutral or park. If I shifted to neutral the rpm was good until the wheels stopped turning…..heck if a bug… but fixed now with used ecu from eBay for $100. Hope this helps someone as it was a real bugger to diagnose…
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