Intermittent rich codes
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Joined: Mar 2024
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Intermittent rich codes
Van dies first start of about 1&2 times a week. Then fires right back up(today I had to crank and feather the gas to get it to start)
Doesn't die again, idles good, maybe a little bit off
Drives good
Intermittent rich codes 172-175 bank 1 and 2 they'll go off and on
Can't find the shrader valve to test fuel pressure. Is it the bright green cap on the driver side on top of the engine? My tester is not getting a reading off that.
Will replace fuel filter
did a AC Delco MAF
Doing plugs
130k on the dash.
2008 5.3l AWD
Any ideas of what I should test?
Doesn't die again, idles good, maybe a little bit off
Drives good
Intermittent rich codes 172-175 bank 1 and 2 they'll go off and on
Can't find the shrader valve to test fuel pressure. Is it the bright green cap on the driver side on top of the engine? My tester is not getting a reading off that.
Will replace fuel filter
did a AC Delco MAF
Doing plugs
130k on the dash.
2008 5.3l AWD
Any ideas of what I should test?
Last edited by StephenN; Mar 7, 2024 at 12:56 PM.
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