After replacing coolant and thermostat on a 2007 accord, 2.4L, what could still be giving a po 128 code?

Asked by Jul 05, 2014 at 11:07 AM about the 2007 Honda Accord Special Edition

Question type: Maintenance & Repair

Checked the wiring and connections on the maf, and ect 1 and 2, all look good. Any
thoughts? I read it's possible the ecu needs a reflash?

4 Answers

108,825

http://www.obd-codes.com/p0128 -- check this out for possible causes and solutions. Is your coolant level correct? Also could be a stuck open thermostat or cooling fans staying on to much at an idle.

I've checked that out. Like I said, I already replaced my thermostat and coolant. Fans are working correctly too.

108,825

Have you checked you coolant temp sensor?

Yes, short of replacing it. The wiring and harness look fine, no corrosion, etc.

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