Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
car died at traffic lite able to restart rough running made it home. ckd oil, water ok, copression good strong spark runs 3 sec then dies.no dtc,s no mil help?
Fastrider750 wrote: fp test is next doesnt seem to have a schrader test point
That's why I asked about scan data - the fuel rail pressure sensor will show up in scan data as an avaiable PID. May or may not show up on the Generic side with this model year.
If you keep your foot on the gas when three seconds comes around, can you keep it running?
no it bucks and acts just like running out of fuel .will swap ffilter in the morning and run a volume test in a soda bottle to verify fuel delivery if not then the old carb cleaner thru a vac port trick
ffilter badly clogged, swap for new fp is 70psi, koeoff starts and runs 3 sec.then dies half throttle no change starts ,surges and dies like the fp shuts off on startup FPDM maybe?
ok scan tool data is frp 70 initial settles to 45 koeo jumped the fp ground at fpdm for continuos fp run same thing starts and dies spark checker lit up until engine stops rotating this problem happened instantly no previous drivability issues
Did you take a sample of the gasoline while changing the filter?
Thinking about bad/contaminated/wrong fuel.
Also, were you able to verify that fuel pressure remains in spec during the stall? I see key on engine off pressure readings in your post, but not the pressure in the rail while running and during the stall.
So it starts for 3 seconds and dies? If I were you I’d have a buddy start it up and see if ya can run it off of alternative fuel. That fuel rail pressure sensor might be lying as well with contamination in the fuel. So if possible t in a gauge.
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