oldphil

So far checked all ignition and fuel fuses, fuel pump activate with key does a short cycle and shows steady 49psi, shot a dab of either in and it fired off and died ignition seems to be Ok. I ordered a pump om the advice on another board, will not install as the pressure is fine for a Flex setup. Really need to get ir running before it roots into the driveway.

Phil

Irish_alley

my 02 4.8 ran with only 20 psi. had some stating issues and didnt like passing cars but a new pump fixed that. i dont see a no stating issue with 49 but idk. i would put a diode on the the injectors to see if theyre getting signal to fire. even with 0 psi they should have signal when cranking

oldphil

I have ignition found that with either, something is not allowing the fuel injectors to function. Off and on I had an issue with the anti theft not allowing it to start, had to do the 10 minute wait thing. That has not happened in quite awhile and waiting 10 does not work with this issue.

tech2

if you are in theft mode...the vehicle will crank, the injectors will be disabled and the security light will flash for the 10 minutes it locks you out. if that is the case, have someone with a full function scan tool read the theft codes. a code reader cannot access these codes. the scan tool must be able to access "B" or body codes

oldphil

Thanks for the tip will try to borrow a scanner like you mentioned.