HELP the new problem: mustang wont start.

tkrizzy3 · June 21st, 2010, 08:51 PM

Hey guys, finally got the timing issue figured out, on to the newest problem. the crank will turn forever so im assuming its timed correctly, but now when we start the car it turns over forever but never fires. It seems maybe were not getting any spark? Keep in mind we pulled the engine so could there be a connector that if unplugged could keep it from starting? Or anyone got any other suggestions? I checked the gas purge on the rail, and fuel is present, so i dont think any air or anything is in the lines. We did put in new injectors also but im pretty sure they are in correctly. ANY suggestions are appreciated!

Again... we turn the key and it cranks forever but never starts

Tmac3320 · June 21st, 2010, 09:10 PM

just happened to me with my motor swap. check the entire wire harness, the CPS may not be plugged in, (crankshaft position sensor) or something else. But check your interior for unplugged wires as well if you did anything in there.

If that is all squared away then try this: Re load your stock tune for your car, then load the modified tune if you have one, and fire it up. That was the problem with mine, I have no idea why but that was it haha. And if it ends up not starting again, then re load it again. I had to do that too.

Also....smell your oil dip stick, prolly smells like gas. Change your oil once you get this figured out and it starts multiple times to make sure the problem is cured.

It smells like gas because you were turning it over and it was spraying fuel into the cylinders with no fire, so it seeps through the rings and into the block.

hope this helps

Tmac

tkrizzy3 · June 21st, 2010, 09:20 PM

Well i havent got it tuned yet, we just wanted to get it running for like two seconds before we trailered it up to tune it, so reloading the programs wont do anything correct?
Would the oil prevent it from starting?

0949er · June 21st, 2010, 09:22 PM

can you test to see if you COPS are good?

tkrizzy3 · June 21st, 2010, 09:28 PM

LOL what are cops? Is that an acronym for Crank Pos. Sensor?

Tmac3320 · June 21st, 2010, 09:30 PM

oil wont make a difference. Try reloading the tune you had in it and see if that helps. But check your ENTIRE wire harness first, around the steering column and everything and in the engine bay. Otherwise just load it up and take it to the shop and tune it there.

What have you got done to it?

Tmac3320 · June 21st, 2010, 09:30 PM

CPS is crankshaft position sensor

tkrizzy3 · June 21st, 2010, 09:34 PM

What do you mean reloading the tune i had in it? It was totally stock to begin with, should it have a tune? Please go into more detail if you can. I really appreciate it!

tkrizzy3 · June 21st, 2010, 09:37 PM

We took out engine, and put in all new gaskets, ported heads, and installed a 70mm turbo and now everythings buttoned up and its not starting. THe CPS is plugged in, same with the MAF. Only thing that i can think may not be connected is the vaccum lines maybe. Would that make a difference? I dont want to continue with the building of the turbo kit and all that until were sure it will run.

tkrizzy3 · June 21st, 2010, 09:53 PM

Is there a way to know if the CPS is in correctly? I mean we just pushed it into the opening and screwed it in, then connected the clip for it.... anything else or any way to test?

Tmac3320 · June 21st, 2010, 10:31 PM

hmmm, if you've never had it tuned before with an aftermarket tuner then thats ruled out. You're problem lies in something electrical..... these problems suck so bad. haha

O2 sensors plugged in?

Question to throw out there to anyone.....

Will a car that is this modified (turbo etc...) even start without some sort of computer base tune?

Tmac3320 · June 23rd, 2010, 03:42 PM

any luck on it yet man?

June 21st, 2010, 08:51 PM	#1
tkrizzy3 Regular Join Date: Apr 2010 Posts: 177 iTrader: 1 reviews	HELP the new problem: mustang wont start. Hey guys, finally got the timing issue figured out, on to the newest problem. the crank will turn forever so im assuming its timed correctly, but now when we start the car it turns over forever but never fires. It seems maybe were not getting any spark? Keep in mind we pulled the engine so could there be a connector that if unplugged could keep it from starting? Or anyone got any other suggestions? I checked the gas purge on the rail, and fuel is present, so i dont think any air or anything is in the lines. We did put in new injectors also but im pretty sure they are in correctly. ANY suggestions are appreciated! Again... we turn the key and it cranks forever but never starts

June 21st, 2010, 09:10 PM	#2
Tmac3320 Enthusiast 2000 Mustang GT Join Date: Nov 2007 Posts: 791 iTrader: 0 reviews	just happened to me with my motor swap. check the entire wire harness, the CPS may not be plugged in, (crankshaft position sensor) or something else. But check your interior for unplugged wires as well if you did anything in there. If that is all squared away then try this: Re load your stock tune for your car, then load the modified tune if you have one, and fire it up. That was the problem with mine, I have no idea why but that was it haha. And if it ends up not starting again, then re load it again. I had to do that too. Also....smell your oil dip stick, prolly smells like gas. Change your oil once you get this figured out and it starts multiple times to make sure the problem is cured. It smells like gas because you were turning it over and it was spraying fuel into the cylinders with no fire, so it seeps through the rings and into the block. hope this helps Tmac __________________ ___________ 0hp 0tq

June 21st, 2010, 09:22 PM	#4
0949er MM Fanatic 2004 Mustang GT 12.85 @ 114 Join Date: Apr 2010 Location: Charlotte Posts: 3,224 iTrader: 0 reviews	can you test to see if you COPS are good? __________________ MODS: Vortech V1 T-Trim @ 7.5 PSI (tuned down) Comp Cam Stage 2's + more 432 rwhp / 396 rwtq 02/27/2011 NEW VIDEOS! It takes ~$60 a rwhp (over stock) for a 99-04 Mustang GT. Do the Math C2H5OH on the horizon

June 21st, 2010, 09:30 PM	#6
Tmac3320 Enthusiast 2000 Mustang GT Join Date: Nov 2007 Posts: 791 iTrader: 0 reviews	oil wont make a difference. Try reloading the tune you had in it and see if that helps. But check your ENTIRE wire harness first, around the steering column and everything and in the engine bay. Otherwise just load it up and take it to the shop and tune it there. What have you got done to it? __________________ ___________ 0hp 0tq

June 21st, 2010, 09:30 PM	#7
Tmac3320 Enthusiast 2000 Mustang GT Join Date: Nov 2007 Posts: 791 iTrader: 0 reviews	CPS is crankshaft position sensor __________________ ___________ 0hp 0tq

June 21st, 2010, 09:20 PM	#3
tkrizzy3 Regular Join Date: Apr 2010 Posts: 177 iTrader: 1 reviews	Well i havent got it tuned yet, we just wanted to get it running for like two seconds before we trailered it up to tune it, so reloading the programs wont do anything correct? Would the oil prevent it from starting?

June 21st, 2010, 09:28 PM	#5
tkrizzy3 Regular Join Date: Apr 2010 Posts: 177 iTrader: 1 reviews	LOL what are cops? Is that an acronym for Crank Pos. Sensor?

June 21st, 2010, 09:34 PM	#8
tkrizzy3 Regular Join Date: Apr 2010 Posts: 177 iTrader: 1 reviews	What do you mean reloading the tune i had in it? It was totally stock to begin with, should it have a tune? Please go into more detail if you can. I really appreciate it!

June 21st, 2010, 09:37 PM	#9
tkrizzy3 Regular Join Date: Apr 2010 Posts: 177 iTrader: 1 reviews	We took out engine, and put in all new gaskets, ported heads, and installed a 70mm turbo and now everythings buttoned up and its not starting. THe CPS is plugged in, same with the MAF. Only thing that i can think may not be connected is the vaccum lines maybe. Would that make a difference? I dont want to continue with the building of the turbo kit and all that until were sure it will run.

June 21st, 2010, 09:53 PM	#10
tkrizzy3 Regular Join Date: Apr 2010 Posts: 177 iTrader: 1 reviews	Is there a way to know if the CPS is in correctly? I mean we just pushed it into the opening and screwed it in, then connected the clip for it.... anything else or any way to test?

June 21st, 2010, 10:31 PM	#11
Tmac3320 Enthusiast 2000 Mustang GT Join Date: Nov 2007 Posts: 791 iTrader: 0 reviews	hmmm, if you've never had it tuned before with an aftermarket tuner then thats ruled out. You're problem lies in something electrical..... these problems suck so bad. haha O2 sensors plugged in? Question to throw out there to anyone..... Will a car that is this modified (turbo etc...) even start without some sort of computer base tune? __________________ ___________ 0hp 0tq

June 23rd, 2010, 03:42 PM	#12
Tmac3320 Enthusiast 2000 Mustang GT Join Date: Nov 2007 Posts: 791 iTrader: 0 reviews	any luck on it yet man? __________________ ___________ 0hp 0tq

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