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Old 03-12-2020, 02:49 PM   #1
NemeGuero
Scooby Newbie
 
Member#: 339764
Join Date: Dec 2012
Location: Seattle, WA
Default ej20g knock/misfire robtune warning light at idle

EJ20G with robtune 440.

Things I have done to investigate:

OHM'd the knock sensor.. 500K Ohms

Checked compression - 150 almost dead on on all cylinders

Leakdown - less than 5% on all cylinders

spark check - tested all coils on all cylinders and got a healthy spark

12V measured at each plug with key in on position

measured primary coil resistance.. 1.1 vs spec of .7 but all 4 are consistent

could not get a secondary coil resistance due to poor contact on the spark contact I'm guessing.

Here is video of misfire light: *Click*



Only ECU code was Idle valve - 24.

Have not done coilpack conversion but they're new coils, new plugs, freshly cleaned and flowed injectors.



Any help is greatly appreciated.
thanks.
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