GenVibe - Community for Pontiac Vibe Enthusiasts

Help 2003 pontic vibe installed new fuel pump worked then died I.looked under dash and in glove compartment for a relay marked open circuit relay! Cant find? efi relay new! Maybe oil pressure swith bad? or temp sensor! i nstalled new crankshaft sensor?i order another fuel pump number 3! anyone who helps will receive a gift in the mail!!!!! new ECM $469 ..dollars reflash at dealer !$259.oo I have power to fuel pump no start now ECM or sensor! when car runs it great or junk it thx tigerman! NOte junk yark ECM wont work can only be reflash ONce THX tigerman may need new car???

You just need to test the parts instead of blindly replace things. First, find out why it's not starting.
1) Does it crank?
2) Does it have spark?
3) Does it have fuel pressure?
4) Does it have injector pulse?
5) Does it have compression?

gtv237 wrote:You just need to test the parts instead of blindly replace things. First, find out why it's not starting.
1) Does it crank?
2) Does it have spark?
3) Does it have fuel pressure?
4) Does it have injector pulse?
5) Does it have compression?

1) yes
2) yes
3) yes
4) yes
5) yes
6) car showing lean code po170 po171
7) second fuel pump working now no Start
8)reading oil pressure switch cuts power to ecm to fuel pump
9)check all fuses and relays good not one bad fuse scary
10 car cranks spray fluid in throttle car start! Ok
11) which sensor is bad have Chilton Manuel

It sounds like something is cutting out if it runs on starting fluid. P0171 can appear if you have a weak fuel pump. Are you sure it was installed correctly?

gtv237 wrote:It sounds like something is cutting out if it runs on starting fluid. P0171 can appear if you have a weak fuel pump. Are you sure it was installed correctly?

Looking for a loose ground all looks good check engine light soild new mass air sensor fuel regulator pump something putting the kill to ecm or fuel pump yes check all connection with ohm meter I smell like I work at a gas station! Lol can the oil pressure switch kill the ecm to pump?

Tigerman wrote:

gtv237 wrote:You just need to test the parts instead of blindly replace things. First, find out why it's not starting.

3) Does it have fuel pressure?
[snip]
3) yes

Seems to me it doesn't.
I'd take a DVM and needle probes and check voltage to the pump at the connector near the tank.

Found relay under dashboard with no help from this forum!!!!!!! ¡!!!!!! I'm not going to tell you where it is I checked all wires from ecm to fuel pump who ever built this car toyota wants you to go to the dealer and pay Chilton manual s wasted my time fix car now for sale

Good job, tigerman. You showed us.