Crank and immediately stall problems are classic vacuum leak symptoms. Leaks areound the injectors are often overlooked. Rats nest removals present a bunch of possibilities for vacuum problems. You really need to go back and retrace your steps in the process....particularly if the car was workin OK before the work was done.

swapped fuel lines... embarassing, to say the least. thanks for all the help though guys, I really appreciate it. I tell you what, if nothing else came out of this: that intake manifold is sealed up tighter than.... well, you know.



thanks again.

-Hill

on a side note, a disconnected o2 sensor wont cause youre car to stall, not start, not run, or do anything other then prevent it from going into closed loop which will just make it run richer and use more gas.



the o2 sensor isnt even needed.



kevin.

not to dog ya man, but when I put on the headers (a few years back) I broke the old 02 out of the old exhaust. with the new headers hooked up without an o2 connected to the system the car would start, rev to 3k and die. as soon as I got the new o2 in the mail and installed it it ran like a champ.

idk but my car runs w/ no o2 sensor

idk but my car runs w/ no o2 sensor

ok hillbilly not to attack you or anything.



but i am telling you, no matter what, any car in the world you can unplug the o2 sensor and not notice anything but a check engine light. i know how the ecu sees the o2 signal and know what the o2 signal is used for etc in the car's ecu. i am guaran-damn-teeing you that the ecu could careless about your o2 sensor.



kevin.

O2 sensor what is that?



The wire has been broke on mine for god knows how long, I get 18+ mpg driving the car everyday beating the **** out of it. If ur car is an s4 throw that POS in the trash along with just about everything else hanging off motor.



1. check spark

2. check fuel (make sure you didnt accidentally put the lines on backwards, trust me its easy I did it)

3. Redo step one and two.

4. have compresion checked.

5. If one thorugh 4 no worky. Stop messing with the car and call someone who knows what they are doing.

eh, no biggie. knowing my car it probably had other problems plauging it that I didnt now about and the o2 sensor was the final straw that time. I now the oil seals were shitty then, then a year later I cooked a coolant seal (convincing me to quit procrastonating and rebuild the damn thng) six months after THAT (when I tore it apart) I found a chipped corner seal. so yeah.