parked it last night and today...no start

[spook302]

I drove my car home last night. Not a problem in the world. I go to start it this morning and nothing. It cranks but wont fire. Everything is plugged in. The car has a new fuel pump as of 8000 miles ago. I didnt replace it cause it was bad. i rebuilt my engine last summer and freshened up some of my parts on the car at the same time. Is there an emergency fuel pump cutoff switch in these cars. My stangs had them. it has been dumping snow all week here in CO. allot of snow fell of my roof onto the side of my car last night. That is why i am wondering about a cutoff switch. Other than that i have no Ideas.

Checks I just did. I checked the fuel pump relay (mpi I think its called) Its working. I can hear an feel it clicked when I turn my ignition on. This suck as my car is covered in snow right now. The car ran great last night. I dont understand. I put ten bucks in it yesterday and drove maybe 20 miles on the high estimate. Plus its snowing like hell here right now so I wasnt driving around with my foot in it.

Car has spark. Fuel pump sounds like its firing up when I cycle the key. I think its fuel related though, If i cycle the key enough times it fires for a second then dies, it does have fuel in the tank. I put more in just to make sure my gauge was inacurate. I can hear the injectors fire while a friend cranks the car over.

 

[JAXWHITE1G]

Your fuel line may be frozen. If you don't keep the tank full you can get condensation in the tank, or perhaps since you just got gas you may have gotten some water then. It takes very little to get in the fuel line and find a low spot to settle where the gas flows over it. Water expands when it freezes and can block the line. If you have a garage where it is above freezing it will thaw out and should start. Then get some "HEET" fuel line antifreeze. It's basically alcohol. It will absorb the water and blend it with the fuel and burn it. I would use it frequently in the winter in your location. Hope this helps.

Mike

 

[spook302]

Thanks. I have let the car sit since Friday. I took a day off yesterday. I work on cars all week at my shop. I didnt feel like it yesterday but I am back on it today. Going to get my fuel pressure gauge from work and go from there. You now its been cold here for a couple months but I could have gottten some bad gas. I hope its that easy. It never seems to be easy stuff when its my car thats not running. I dont have a scan tool at my shop that will work with my 1g. Some jerkoff son of a @#$%^ stole the pda out of my car. Not the link or the pen even just the pda. Probably some loser punk who didnt even know ### it was for. Another thought I am having is that my injectors are not firing. But I am getting spark, the plugs are firing in order so maybe the injectors are as well.

Ok. So I have fuel at the rail. Spark in the odd and even cylinders. I hear the injectors firing. Still no start. WTF is going on with my car. i have the three things it needs to start but it wont. TB is fine. I dont understand why my car will not start. Plugs are fine. not fouled or wet. Could something going wrong make my spark plugs fire but not the injectors?

Just checked all plugs for spark. They are all good. Fuel pump cycles on and I have pressure at the rail. I think my injectors are not pulsing. Can a cas go bad and fire the spark plugs but not the injectors? Or is the problem in the ecu?

noid light confirms injectors are firing as well. What the hell. My fuel pres check was cracking the bolt loose on top of the fuel filter and allot of fuel came out. I dont usually check stuff like this but its cold outside and I am far from the shop. But my plugs are bone dry after cranking and checking them. I am loosing it over this.

ok. So I decided to check the fpr. I grabbed some pliers and clamped the return line closed on the fuel line and low and behold she started right up. So one would think if he pulled the clamp off the return line the car would die do to no fuel pressure in the lines, just flow in a circle back to the tank. It keeped running, for fifteen minutes untill I turned her off. For the next half an hour I would let it run, turn it off, wait..... and it would start right up. Now on accasion the car would throw a cel when it did this and i revved it up it would spew black smoke, a rich condition. I could let it run and clear its throat and do it again and it would not smoke. So there is clearly something wrong with the regulator. It seems to be jumping around too rich and not enough. I think something is wrong in the diaphram or something. The important thing is I finnally figured this out. I feel dumb as i could have save some time with diagnostics but I was out in the freezing cold.