93 mustang dies!!!

clypsogreen93 · 10-06-2008

my 93 2.3 mustang starts and runs great.... until it warms up, then it starts to spit and run really rough... then it dies if you try to give it some gas... then it diues out uuntil you either let off the feul, or it starves!!! ive replaced the coilpacks, and wires, plugs, etc... and now all i cant find what it is in the feuk system, can anybody tell me if this is a clogged injector or a pump gone bad or what???

SVT1995 · 10-06-2008

Whens the last time you replaced the fule pump and filter?

clypsogreen93 · 10-06-2008

i dont know, new car, fuel filter is only 2 months old, dont know about the pump

clypsogreen93 · 10-08-2008

I think its inthe ignition or egr circuits... but i replaced all the coil packs, and sensors for it to... the only thing left is the crank trigger??? can anybody help me??? PLEASE!!!

stanged1970 · 10-09-2008

Seriously, autozone sells a $30 code reader. Use it, it may help you track this down, then based on the codes everyone can help you a little better than this shot in the dark.

clypsogreen93 · 10-09-2008

i have a reader... its throwin codes 334... egr voltage higher than expected... but i cant figure out how to fix it!!!

stanged1970 · 10-10-2008

Sounds like maybe your EGR Valve Position(EVP) sensor may be bad. Run these tests on this Autozone article. They are exactly the same as the Chilton's guide. AutoZone.com | Vehicle Selection - Year

Here's a bit more background stuff:
Ford Fuel Injection » EGR Valve Position sensor (EVP)
EDIT: This link will show you the what the pins are on the connector just in case the pictures don't show up on the autozone site. They didn't come up for me.

Read the first part and the service tip at the end of this article:
http://www.tomco-inc.com/Tech_Tips/ttt19.pdf

Anyway, that autozone link should probably clear things up for you. You can just ignore the last two links, they're just extra.

stanged1970 · 10-10-2008

Oh, one more thing... I know the EGR is opened by the computer not only based on exhuast content but also on high engine temperatures. The recirculated exhaust burns at a lower temp than a more oxygen rich mix, therefore lowering the temp of the engine. You mentioned that your car messes up when the car warms up, that could point to the EVP/EGR as well.

clypsogreen93 · 10-10-2008

yeah... your right but i replaced evp and egr sensors and switches all around... the only 2 sensors of any kinda that havent been replaced is the throttle position sensor and the crank position sensor

5.0Stanger · 10-11-2008

Everyone should remember that before pulling trouble codes, making sure all of the electrical connections, vacuum lines, and intake tubing clamps should be secure. There should be no obvious vacuum leaks, exhaust leaks, or unmetered air being introduced into the engine. Pulling codes will point you to a possible problem. Sometimes, another separate problem will contribute to the code being set in the ECM.

clypsogreen93 · 10-13-2008

thanks for all the help guys!!!
i fuxed it though!!! the guy we bought the car from never mentioned that his lil brother filled the gas tank with sugar!!!
so the tank and pump rusted out

5.0Stanger · 10-13-2008

Yep, that'll do it! Sorry, I've never actually had to deal with a sweet fuel tank. Did you ask why that tool would do that to your car?