Rep Power: 0

Problem is intermittent. Vehicle will run fine for two weeks then not start for a day. Have spark at plugs. Have pulse at injectors. Have tried a couple relays they all behave the same. When vehicle will not start fuel pump will not run. We can jump relay 5 to 7 and fuel pump will run but vehicle will still not start. All other readings in and out of relay seem to be normal. Have checked ground wires and everything seems ok. Any suggestions? Ecu keeping something from coming together? Could it be something in the switch? Thanks for the help.

 
Rep Power: 229

Do the other systems got voltage when you turn the ignition switch and it doesn't work?

It could be the ignition switch

-Does the battery need to be jumped when it fails?
-does the starter engage?
-power to gauge cluster?

 
Rep Power: 0

Battery does not need jumped. Starter engages every time. Not sure about gauge cluster will have to check next time it does not start. Thanks.

 
Rep Power: 0

Everything gets voltage except where 7 leaves relay going to fuel pump.