ok i just got my z friday,worked and started fine till this morning.i went outside to start it and it doesnt want to fire up...wtf ...i took off the fpr on the passenger side and tried to start it to see if fuel poured out and nothing..i swapped the pump for a walbro 255(minding you idk what size pumps are oem) and still nothing.its like im not getting any spark.i pulled a plug and it looks fine...i need help asap

 

oh it turns over just no fire

 

well, first things first you said no fuel is coming out when you try to start the car with the fpr removed. That being said i do'nt think the problem is with getting spark.

You just replaced the fuel pump. Have you checked the circuit to see if there is a fuse blown or if something is unhooked to the fuel pump? It sounds like your fuel pump isn't getting any power.

 

i checked fuses under the driver side but i didnt see one for the fuel pump where is it located?...i disconnected one of the coilpacks it sounded different but still no power...could the tb cause a problem?

 

oh and when i pulled the fpr off the fuel didnt pour out it just stayed level

 

so when you have the ftp unhooked and you turn the car on fuel continiously comes out? My pressure reads high 40's when the car is on without the engine running so that means fuel should be coming out pretty good with the fuel line open.

 

well right now i took the pump out and ran power wires from the oem lines nothing..i ran direct 12v ftom the battery it turns on!!!!...so im gonna run the old 12v walbro mod on the z that i picked up from my supra days...

 

it might be a good idea to find out where the break in the wires are so it doesn't cause an electrical short and possible fire at some point later down the road.

 

well i got power to the pump theres no doubt about that because of noisy walbros but still no freaking fire wtf...im stumped

 

what should i check about not getting fire?...do these coilpacks have an ignitor?

 

inside of them. highly unlikely that all 6 will go bad at once. get a spark tester that plugs into the spark plug wire and shows you if you have spark. that will answer that issue.

I'm going to take a wild guess and say that the power to the fuel pump isn't the only electrical problem you have which is why i suggested finding out that issue instead of just bypassing it.

 

yea it would be hard to imagine all at once failing,...well gotta send it to a mechanic...i put an autozone obii scanner it picked up nothing,says it cant communicate with the vehicle..

 

This could be a long shot but can the sensor in the key lose the signal and stop the engine from starting?...i replaced my ecu on my mazda at one time, it would attempt to start but wouldnt turn over but then i reflashed the key and it turned on...maybe it could be something else but just throwing it out there

 

i'm not sure. i've never heard of that being an issue. Check the key to see if it's damaged. If the sensor isn't in there then it won't start.

 

Possible, I have heard of this issue on a Z as well.

 

it's logical, but i've never heard of it. i guess i'm out of the loop

it's worth a shot to call the dealership and see if they can reprogram it for you.

 

crank position sensor

 

wouldn't that throw a code?

 

you would think but i changed a tranny out in one of my boys cars and didn't tighten the bolt up enough and it rattle loose and the sensor came out a little. enough that car would not start and still never threw a code. although i know it was still there it just wasn't making contact which should of threw a code. but no fire sounds like cps to me. if you have someone local have them come over and just swap there out real quick and try and see. that way it cost nothing.

 

Please start another thread and use a thread title that is pertinent to thread content sir.


Thank you...


VO