92 eagle talon awd hard to start???

[hippy]

Its a 92 awd 5 spd it works great but just over the last 3 weeks its hard as hell to start?? Sometimes it wont start at all. I just changed the fuel pump no difference changed teh mpfi relay tried it for a half an hour and finally it started. shut it of and started liek 10 times it started some times it took a few whirls over but finally started. It seems like its loosing its fuel presure or something?? ANy ideas what to check out?? Thansk car is stock except a kn filter and muffler!!

 

[Jeff_Ferrara]

check your battery posts to make sure nothing is loose, check ignition coil, and starter

 

[ROOKIE1]

What does hard to start mean ? Is it cranking and not starting ? Is the starter engaging ? When you try to start it , does anything happen ? I have a 90 tsi that had starting problems . Turns out my capacitors in my ecu were leaking .

 

[Mike Marnik]

Im going to have to go with rookie on this one. I was having horible problems starting my car and it would take a minute or two and some swearing before it would start and it turned out my caps were leaking in my ecu. got them replaced and cleaned up and it ran great.

 

[hippy]

Ok its hard starting as in turn teh key whirls over fine lots of life there just no get up and go it has lots of spark but it seems liek its getting no fuel!!

 

[ROOKIE1]

Did you change to a stock pump ? 190 , 255 ? Change fuel filter when you installed other pump ? If it is a 255 you a fuel pressure regulator so you dont overrun injectors .

 

[femmeDSM]

Take a look at the Coolant Temp Sensor.
Here's a link to a Tech Article in which I illustrate how to check your ECT, as well as a few other things that might relate to your problem.

Things I would check, off the top of my head, include the ECT, fuel filter, and fuel pump o-ring (double, triple, quadruple check this). I would also recommend double-checking the base fuel pressure. As the previous poster asked, did you install a stock pump or a Walbro/other aftermarket pump?

Edit:
Also, check your spark plugs. All that cranking you've been doing has almost certainly fouled them by now.

 

[hippy]

New plugs never checked tehm lately, it did have a 255 pump and now it has a stock pump almost guantee its in teh fuel system somewheres!! Thansk ill check soem stuff out im goin to get a fp test done!

 

[importboost]

Check engine light on?

 

[Old Mitsu Tech]

Take a look at the Coolant Temp Sensor.
Here's a link to a Tech Article in which I illustrate how to check your ECT, as well as a few other things that might relate to your problem.

Things I would check, off the top of my head, include the ECT, fuel filter, and fuel pump o-ring (double, triple, quadruple check this). I would also recommend double-checking the base fuel pressure. As the previous poster asked, did you install a stock pump or a Walbro/other aftermarket pump?

Edit:
Also, check your spark plugs. All that cranking you've been doing has almost certainly fouled them by now.

Damn, beat me to it.

 

[importboost]

Damn, beat me to it.

Yah me too

 

[femmeDSM]

almost guantee its in teh fuel system somewheres!!

Little known fact, just in case you didn't know...The ECT (Coolant Temp Sensor) is technically considered to be part of the Fuel System. The Coolant Temp Sensor is the first sensor that the ECU looks at when you start the car. The ECU asks the temp sensor "What's the Temperature Today?" and the ECT responds. The ECU uses this information to determine how much fuel is needed to properly start the car. When the sensor breaks, it will tell the ECU that it's extremely cold outside (I've seen it almost -100*F). This would cause the ECU to literally dump fuel into the cylinders, which will "drown" the plugs, and make the car difficult or impossible to start.

 

[Old Mitsu Tech]

Little known fact, just in case you didn't know...The ECT (Coolant Temp Sensor) is technically considered to be part of the Fuel System. The Coolant Temp Sensor is the first sensor that the ECU looks at when you start the car. The ECU asks the temp sensor "What's the Temperature Today?" and the ECT responds. The ECU uses this information to determine how much fuel is needed to properly start the car. When the sensor breaks, it will tell the ECU that it's extremely cold outside (I've seen it almost -100*F). This would cause the ECU to literally dump fuel into the cylinders, which will "drown" the plugs, and make the car difficult or impossible to start.

The knee bone connected to the thigh bone. Oh, sorry.

Actually in lay man's terms, the ECT works in conjunction with the PCM to replace what most of you have never seen. The Choke. Back in days of old, we had chokes. That was those venerable little spring loaded flappers over the top of your carburetor to help enrichen the fuel mixture during cold starting. When your engine warmed up, it either electrically heated a choke thermostat or heated it by the exhaust going through the intake which then acted on a bi-metallic spring which uncoiled because of the different stretch rates of the two metals when subjected to heat to open the choke flapper.

Those days are gone. The rest is as Claire said. Indeed, the first sensor looked at is the ECT. Remember always that the PCM is a stupid mindless automaton. It only does what the sensors report to it. If it sees -40 and it's 80 outside, it's going to modulate the injectors on time in order to set the mixture for -40 come hell or high water.

Just use your link or have it scanned by a pro. It's very easy to see. You will need it to set over night for an accurate test. That way you can compare the ambient temperature to the ECT's readout.

Good Luck..

And Claire? Very nice job.

 

[femmeDSM]

Thanks Rick

 

[hippy]

Ok things we did changed that ect sensor and took plugs out cleaned them up put back in started after a while of whirling idles and runs perfect just cranky to start. Goin to get teh base fuel pressure tested, has a inline high flow filter just whils for a bout 10 seconds and then just fires up! works great when running any other ideas??

 

[femmeDSM]

Hmm. Let us know the results of the fuel pressure test, and we can go from there