stumped!!! no start problem

[Tyeler18]

If it's off that much then the sensor's bad. When it's bad tells the computer it's -77 degrees out so it literally POURS fuel into the engine and just floods it out.

Try starting it with your foot partway down on the gas pedal. Not all the way, just 1/4 to 1/2 throttle and see if it chugs/starts. First get the fuel out of the engine by pulling the MPI fuse and cranking the engine, put the fuse back in and then do the what I stated.

 

[eDeclpse92]

im by alone doing this so i moved the rail up high enough to see if fuel comes out and it does. the head and intake mani had fuel on it when i stopped like 4 cranks later. alright. il try that, ive done it wot ### i was getting frustrated byt il try .23 to .5 of the way down.

i also have a seperate switch fpor the fuel so il just turn off the pump and clean it out.

 

[Tyeler18]

im by alone doing this so i moved the rail up high enough to see if fuel comes out and it does. the head and intake mani had fuel on it when i stopped like 4 cranks later. alright. il try that, ive done it wot ### i was getting frustrated byt il try .23 to .5 of the way down.

i also have a seperate switch fpor the fuel so il just turn off the pump and clean it out.

In that case you really do have fuel, spark, and compression. Make sure your timing marks all line up. If they do then the only real culprit left is the CTS, it's like $8 to replace it, so no worries there.

Just a question, why the seperate switch for the fuel pump? When I bought my talon it had a seperate switch as well and I switched it back to the VFAQ rewire the correct way.

 

[eDeclpse92]

i just tried your 1/4 to 1/2 pedal option and it didnt work. can that cts really keep it from running?

alright, il replace that sensor and pray that it works. thats why ive been stumped. but its a project car and i have a panel to the right of me with extra electronics on it. i got this car as a rolling chasis with pedals, one seat and a tranny and reaer end where the passenger seat should be. no wiring and tried making some harnesses work ### i couldnt find any. so i just wired my pump up with a switch not have to get a harness fpr the rear of the car. im guessing you can get that sensor at advanced for 8 dollars?

 

[turbotalon31]

the cts wont keep it from running but its a pain to start i cranked my for about 45 min. till it started and yes advance , autozone all have the sensor. take a hair dryer or heat gun to the cts sensor and get it hot and see if it starts .....

 

[eDeclpse92]

alright. well i just went by advanced and picked one up for 18 dollars. figured i would need it eventually so i just got it. i measured the new one and it was 2.5 ohms. right in spec with what the book says im gonna keep trying to get my car started but if anyone has anything else they want to add, i am open for suggestions. thanks for all that have helped so far!!

 

[nehring8]

You may want to check the actual fuel pressure, which is a PITA. Other then that a MAF failure will keep the car from starting.

 

[eDeclpse92]

I know that my maf is good. I put in into another friends car and it worked fine. fuel pressure is the only thing that i havent checked but, i can almost gaurntee i have fuel pressure because I have a 6an fuel feed line with the new pump. il still check it though, but i have to get a hold of the tester. i have replaced the temp sensor, checked multiple other sensors and it still isnt firing up. I redid the vaccum lines because a couple were wrong. it started sputtering a little, but its a dsm so the starter went out so il keep you guys updated on what happens.
thanks for all the input.

 

[95TalonOwner]

A walbro 255 with stock fpr is still bad.

 

[eDeclpse92]

alright. what would you recommend i do??? this is my first build so I dont everything thats going on?? and could that really cause me to flood out? even at stock boost?

 

[blkgst97]

Nobody has suggested this yet and it might be silly but are you sure you have the right firing order on your plugs??

 

[eDeclpse92]

yes, im in the right firing order. it ran on brake parts cleaner (to see if fuel was the problem, i put it in there to see if it would fire up) for 2 to 3 secs and didnt even sound like it was missing in that time period.

 

[eDeclpse92]

for those wanting to know, the problem was sooo stupid im hitting myself bad gas.....appearently after a couple of months, gas breaks down and causes a no start/ hard start/ rough running problems. gotta learn sometime though...thanks for all the input anyways