hot mess

[pontiac3100]

hey umm do yall think i'm showing symptoms of a clogged cat??

[pontiac3100]

bump

[pontiac3100]

someone please help?

[pontiac3100]

bump,please

[bszopi]

By unplugging the cam sensor, it should still start, but it will go in limp mode because it doesn't know when to start firing the injectors.

The TPS voltages look fine.

I'm not sure on the O2 voltages (as far as values), but they are probably fine as well... While cruising, the mixture will be somewhat lean (>500mV), but when you floor it or let off the gas quickly, the mixture will go rich until either you stop WOT or the fueling returns to a stoich condition.

I'm still kind of confused as to what your issue is... It runs bad until it gets hot? And once it reaches normal operating temp, it is fine?

[pontiac3100]

i thought so at first but you have to be driving the car for quite sometime.
then it's fine.

i hooked my scanner up and i noticed when the bogging happens the knock sensor reads upto 5*, while the spark advance read 20* so the timing retards?

i check for vac leaks...useing throttle body cleaner...no leaks!
DAMN! what is wrong with this car?!

PLEASE HELP ME?

[pontiac3100]

http://60degreev6.com/showthread.php?t=31393&page=3&highlight=bogging

you guys...do you think it could be my crank sensor??

[torq455]

no, it wouldn't start at all then. it needs 6 even pulses before the engine will fire.

[torq455]

how's your EGR. not leaking? maybe your chip or pcm is bad?

[pontiac3100]

nope it's not leaking.
i got some throttle body cleaner and sprayed and no leaks.

well come to find out from quite a few people, seeing i have a 94, i used a 95 gt pcm.

they say thats not a good idea.
seeing how the 94 had different settings and such.

but i tried it and it did'nt work.
i rebraided the wire for the crank sensor.

and there was this fuse by my data link connector.
i removed it and my temp,speedo,battery gauge went all haywire.
and the ses,ets,passlock light came on.
i connected back and the only problem i have is when the engine is cold it missfire's....

what do you make of that

[torq455]

no, i was meaning the EGR valve wasn't stuck open, although you usually will get some kind of code.

is it a lean misfire, or rich?

[pontiac3100]

oh it's deffanately(msp?) a rich missfire.

also when you rev her quite a few times or if your on the highway driving around 80-100mph you can smell it.

if the egr valve was'nt opening i heard that the engine would run hotter than normal.
and also you'll have detnation....

[torq455]

http://en.wikipedia.org/wiki/Exhaust_gas_recirculation

it has it's pros and cons. i don't have it on my 04 GASE now, and i'll have it eliminated on my Z soon. i like the fact that i won't have all the excess carbon build up in my intake anymore.

running rich eh? have you check the MAP voltage? at idle warm it should be about 1.35V. you also should check your altitude and see what your voltage should be at key on, engine off.

[pontiac3100]

volts with key on/ engine off it's about 12-11v.
while running it's 13.5.

i was suspecting map too.
i'll have to check again...

[pontiac3100]

the map is 1.45v but goes up when in gear.
also i noticed with the engine off/key on.
the throttle open % reports 100%...but the tps volts reads 3.75v push it more the volts will go up to 4.43v.
it seemed like when the bogg whould happen when the volts read 4+....