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23/07/2022 3:07 pm
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Hi Scotty 2009 Honda CRV looking at fuel trim at idle ST 3.9 LT -10.7 car has 300,100 mile smooth running idle. Reason why I’m looking is on a long trip the mail light came on P0420 was waiting to get home to further investigate added fuel system cleaner ride home after 900 miles the MIL shut off hasn’t come back on yet…. {black}:sweaty:
Now back to -0.0 LT 7.0ST fluctuating 6.3 7.0…
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23/07/2022 4:24 pm
Check your fuel pump pressure before suspecting a bad injector(s).
I had the pump out prior to trip, the screen was clogged cleaned the screen and pump then reinstalled. Where is the service port to check fuel psi?