looking for some opinions!!! stalled and wont restart

[shonum]

i have a 94 mtx and i drove it to work on a rainy day. when i whent to leave work i started it up and drove it to the door to let it run. when i got out it was chugging like it was missing. i got in and hit the throttle a little and it stayed running (barley) for a little bit. it then stalled and wouldnt restart what do you think it would be? i have checked the spark and thats good i checked injectors and they are getting signal to shoot. i changed my fuel filter (although clogged it still didnt start after changing and there was what i think to be oil in the gas that came out of the old filter) im going to do the 60k service because it is time due to plug seals are bad and the sparkplugs were unseen do to oil.so if you have any ideas please let me know.

thanks,
drew

 

[shotime1994]

Did you check to see if your getting fuel? Do you hear the fuel pump prime when you turn the key on? Try to pull codes.

 

[1995SHO9]

Sounds like it could be a crank sensor...

 

[Storm-Chaser]

This is what kills fuel pumps - not changing the fuel filter - more so than running the tank low as some proclaim.

Get a fuel pressure gauge and check the fuel pressure at the fuel rail. You can connect to the fuel rail at the shradder valve just to the left of the throttle body/IAC.

Harbor Freight currently has an inexpensive fuel pressure kit on sale for $9.99 - but I've never used [that] kit, nor do I know if the kit contains the correct fittings. Maybe someone else that has the kit can chime-in.

Fuel Injection Pump Tester, item #92699
​

I believe it is on sale in both their February 23rd ad, as well as the Sidewalk Sale ad for 13-15 March.

i have a 94 mtx and i drove it to work on a rainy day. when i whent to leave work i started it up and drove it to the door to let it run. when i got out it was chugging like it was missing. i got in and hit the throttle a little and it stayed running (barley) for a little bit. it then stalled and wouldnt restart what do you think it would be? i have checked the spark and thats good i checked injectors and they are getting signal to shoot. i changed my fuel filter (although clogged it still didnt start after changing and there was what i think to be oil in the gas that came out of the old filter) im going to do the 60k service because it is time due to plug seals are bad and the sparkplugs were unseen do to oil. so if you have any ideas please let me know.

thanks,
drew

 

[CademiaX]

x2 on the crank sensor, it will cut fuel and spark.

 

[oneqwicksho]

X3 on crank sensor but the oil in plug wells will also make it run bad how long has it been since you changed the plugs

 

[stangeater]

x2 on the crank sensor, it will cut fuel and spark.

He said he has spark. Does your fuel pump run when you turn the key? I mean, can you hear it? My guess is that if your fuel filter was dirty, then there is a good chance that your fuel pump is bad. Nows the time to cut the fuel door, and upgrade! Good luck!

 

[shonum]

yes im getting spark and my fuel pump is truning on and giving fuel before i put the new filter on i turned the key and gas came pouring out the line and it is getting fuel to the shrader (although i didnt check how much presure) it does shoot a good stream. this is my seconde sho and my old one had a cranksensor go bad so that was my first thought also. so with this added now what do you think it is because im stumped. its been about a year since i changed the plugs also so they are bad looking but they shouldnt be dead! oh yea and i dont think the check engine light came on while it was running bad or stalled but does come on during the light check when you first turn the key so i dont think there would be any codes to get either. Im thinking what ever cloged the fuel filter cloged the injectors does that sound reasonable???

thanks agian

 

[Ocnaj]

He said he has spark. Does your fuel pump run when you turn the key? I mean, can you hear it? My guess is that if your fuel filter was dirty, then there is a good chance that your fuel pump is bad. Nows the time to cut the fuel door, and upgrade! Good luck!

^x2

Did you say in your first post that the plug wells have oil in them? Where did you check for spark? Oil in the plug wells will make it run like garbage.

If it was a crank sensor it would most definitely throw a code. Even if you don't see a CE light I would check them anyway.

 

[Vnuk1]

X20 you wont always get a CEL but there could be codes pull them so it is easier for them to help you.

 

[shonum]

i pulled a couple of wires and put a screwdriver in the wire and put it to the block and it sparked. it would make it run shity but would it make it stall and not restart even after soaking up the oil in the plug wells with paper towles. and if it was the crank position sensor wouldnt it not have spark at all because there would be no signal going to the coil pack to tell it to send a spark through the wire i checked? and how would i check for codes i dont have a scaner and i cant drive it up to the auto store to do a free dicnostic check?

 

[Vnuk1]

This will help with the codes;

http://www.shophoenixproject.com/eec/eec.htm

 

[shonum]

ok that was something i didnt know but now what if i already had the battery out for a couple of days to recharge it because i killed it trying to start it when i was stranded? can i just plug it back in and try starting it to get the codes to pop back up?

 

[Vnuk1]

Yes you can but you will have to let the car warm up to normal running temps or you will get alot of bogus codes for not warming it up. That is if you can get it running. If not I guess just hook the battery up and go from there.

 

[Storm-Chaser]

The [ CHECK ENGINE ] light is one of eleven idiot lights that should come-on during prove-out. This is basically a validation check of the light bulbs that occurs when you initial start the car, to ensure they're actually working. It has nothing to do with whether there are any codes being generated during the start, nor stored prior to the start-attempt.

Read here about prove-out
​

yes im getting spark and my fuel pump is truning on and giving fuel before i put the new filter on i turned the key and gas came pouring out the line and it is getting fuel to the shrader (although i didnt check how much presure) it does shoot a good stream. this is my seconde sho and my old one had a cranksensor go bad so that was my first thought also. so with this added now what do you think it is because im stumped. its been about a year since i changed the plugs also so they are bad looking but they shouldnt be dead! oh yea and i dont think the check engine light came on while it was running bad or stalled but does come on during the light check when you first turn the key so i dont think there would be any codes to get either. Im thinking what ever cloged the fuel filter cloged the injectors does that sound reasonable???

thanks agian

This is why you will always see people posting "pull your codes first!".

OBD I codes, are stores in the ECM's KAM (Keep Alive Memory). The ECM does have the ability to retain codes for a very short period of time without power, but is typically cleared in less than 5 minutes once the battery is disconnected. So no, reconnecting the battery will not bring-back-the-codes.

Running the self-test will regenerate the KOEO codes (Key On, Engine Off). The engine has to be running to generate/test-for KOER codes (Key On, Engine Running). CM codes (Continuous Memory) codes are stored for 40-80 "engine cycles" for faults that occur while the car is running, before being erased by the computer (provided it has had uninterrupted power available) if they do not occur again.

ok that was something i didnt know but now what if i already had the battery out for a couple of days to recharge it because i killed it trying to start it when i was stranded? can i just plug it back in and try starting it to get the codes to pop back up?

 

[Storm-Chaser]

This is not correct.

If the problem is due to the Crankshaft Position Sensor being at fault/bad, it will always generate/set a code. If the problem is due to some other fault/problem that produces symptoms the same/similar to a CPS fault, it may or may not set a code.

X20 you wont always get a CEL but there could be codes pull them so it is easier for them to help you.

 

[shonum]

i think it was due to bad gas. has anyone else had a problem with water in their gas. i unhooked the fuel filter and got gas out from before the filter and it looked like milk just in case anyone was wondering