Flashing CEL this morning

I got a flashing CEL this morning on the way to work

I was going up a hill in 5th @ 60mph and the car started studdering. I dropped it into 4th and the car ran a little better. Then the CEL started flashing.

I got to a stop sign, the idle was ok, shook the car a bit more than usuall. But starting off in 1st was definately ruff. It seems to drive a bit better in the higher RPM's, but down low it stutters a bit.

Drove fine on the way home last night and this happened within the first 2-3 miles of driving this morning.

I plugged the AP in but it says no error codes found??? The light will flash for a while, then stop, then flash again.

Any idea's as to what may be happening here? Seems like its loosing spark or fuel.

 

MISFIRE! check your plugs, coil pacs, one more Q are you running a catted up pipe? (this has nothing to do with the problem) but if you are getting unburned fuel in your cat (up pipe cat) it can start to deteriorate and take out your turbo, ive seen it happen

 

No catted UP.

I have had misfire cel's before and it never hesitated like this. However I have been questioning the coil pac on cylinder 4... Where 90% of the misfire CEL's came from in the past.

Otherwise the plugs are good, just swapped them out last March?

 

i still cant believe it didnt set a code, it definatly should have

 

Yeah, thats what boggles me. It kept flashing green but it wouldn't read any code. I tried to read it 3 times and reset the ECU 2x. Neither helped.

 

there is a thread on nasioc about pending codes and flashing cel's
let me look for it.
iirc it's to do with coilpacks.

 

i cant find it now.
but something about the misfire event not existing long enough to trip a code.

 

Well, I don't know why the CEL light would keep flashing like it was? Unless it was getting a consistant misfire. Which is what it felt like I guess.

I'm about to go on lunch here. We'll see if it is still acting up. Hopefully not.

 

I had misfire codes when my egt sensor went, and it sputtered and stuttered. Some people say the car goes into "limp" mode(sputtering/not going over 3-4k rpms) i guess. I replaced my egt sensor with a galley plug and did the 2.2k ohm resistor mod, and it's been just fine since.

But, my AP did read the codes. EGT temp too high, and misfire due to EGT gas to high

- jfk

 

Hrm, things I'll have to look into. Still running like ass.

Hopefully Mike answers his pm so I can swing it by his place tonight and have a look-see.