Codes 14 and 19 koeo?
 

I have an 1988 5.0 at with maf and I keep getting a code 19 and 14 in the koeo. I replace the ign module rotor plugs, and wires and it help the hesitation problem but still get the check engine light and a rough idle. The car is all stock but bbk equal length headers and a bbk highflow h-pipe with cats and a fenderwell air intake. I don't know what to do I can't find any test procedurs to go through to help me. Also the brake booster leaks on the backside into the car and makes a hissing noise, but it does effect the way in runs i think because I sprayed carb cleaner on it and the rpms did not change and the brakes work fine.

Re: Codes 14 and 19 koeo?
 

PKRWUD is the guy you need to talk to about this one.

Re: Codes 14 and 19 koeo?
 

Although Pkrwud hasn't been on this board in awhile, you can look him up on the ricehatersclub site. I am not big on fuelie motors. There are plenty of people on this board who know the answer to your question, they just haven't chimed in yet.

Re: Codes 14 and 19 koeo?
 

Yeah, I know but that's the first guy that comes to mind when a subject like this comes up......at least to me, he does.
I didn't intend to dis anyone on here. Sorry if I did.

Re: Codes 14 and 19 koeo?
 

14 (c): Intermittent PIP signal operation. Suspect PIP sensor or TFI module, or grounding or interference problems at the TFI module

19 (o): Failure of PCM voltage regulator. Replace PCM

You didn't mention any problems in your post besides a hesitation problem, is this what we are troubleshooting?

Re: Codes 14 and 19 koeo?
 

The car just runs rough at idle and the check engine light comes on

Re: Codes 14 and 19 koeo?
 

on the code 19 is the ecm that I have to replace, theres no way to test anything for this code?

Re: Codes 14 and 19 koeo?
 

try swapping out the voltage regulator and double check for vacuum leaks.