State test says O2 sensors not communicating the on 3 different hand held scanners it is good to go


Asked by Oct 04, 2014 at 11:04 PM about the 2006 Chrysler Pacifica Base

Question type: Maintenance & Repair

New O2 sensors , new purge valve , new purge canister, new hoses , new EGR , new
factory gas cap , and new fuel tank seals , No check engine light , with ignition on check
engine light does not go off , is it safe to say need new ECU ?

4 Answers


You can get it reflashed from the dealer or buy a used one inline for $85.00- $125.00

2 out of 2 people think this is helpful.

With the ignition on but the engine off the check engine light is supposed to be on. What codes are you getting? Or are the readiness monitors not set? Is that why you're failing inspection? HTH. -Jim

1 out of 1 people think this is helpful.

Monitors are set , O2 sensors not communicating , no codes , A mechanics baffled say chasing ghost

1 out of 1 people think this is helpful.

If that were true the O2 readiness monitor would not set and it would keep throwing a code. This might sound silly but try another inspection facility. If their machine is messed up they're never going to admit it. HTH. - Jim

1 out of 1 people think this is helpful.

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