Huff035

iTrader: (15)

Ok so I left my dads house this morning and was cruising up the interstate about 70 and my SES light starts flashing, I mean its always on because of the rear O2's being gone but it was flashing and the car felt like it had a horrible miss. The light stopped flashing, I pulled over ASAP and was looking under the hood to make sure all the wires and plugs were still intact and they were. So I was sitting there and running the motor up to about 3500rpms trying to find where it started to miss and right at about 3500 the low trac light comes on and pushes my foot off the pedal. I don't understand why the Traction Control would kick in while it was sitting still in park, I turned of teh TCS and then it would let me go past 3500. This happening while the car was in park. Just hoping you guys could have a couple of ideas because I'm supposed to take it to my friends dads garage and he's going to run the scan tool on it. I'm just hoping you guys can give me a suggestion.


It threw two codes that werent related to the rear O2's. One was the random misfire and then also a relay code.
Thanks alot!!!!!!!!!

LT-1 SS

iTrader: (4)

sounds like a speed-wheel sensor

Huff035

iTrader: (15)

Could i have screwed that up when I lowered the car this past friday? Where is it at on the car?

ss.slp.ls1

iTrader: (36)

Flashing SES signifies a missfire. You could have faulty wire or something. You have to do more than look at them.

Huff035

iTrader: (15)

Well they are basically new, but yeah I am checking them tonight. what can I do besides eye ball them and see if they aren't cracked or look at them running at night and see if they are arcing?

ss.slp.ls1

iTrader: (36)

You can check them with an ohmmeter. There is a spec for how much ohm/ft of wire. Don't know it though.

Huff035

iTrader: (15)

I have also heard that an O2 sensor could be loose, so i'm checking them tonight also. I have been looking up symptoms about the speed sensor and dont think that sounds like my problem.

Huff035

iTrader: (15)

Other code is P1642 if that helps.

Z28Camaro30Ann

iTrader: (15)

Check and make sure you don't have a SP Wire hitting your headers...you could have burned through one and that could be causing your misfire. I have no idea about the TCS though.

Huff035

iTrader: (15)

it was a "multiple/random cylinder misfire" at least i thought. would one plug wire cause that code to come up?

StangeatinZ28

sounds like you have a bad wheel speed sensor and a missfire issue. check all the wiring and make sure you have no plug wires rubbing anything including being burnt on the headers

the_merv

iTrader: (88)

^^Agreed.

Huff035

iTrader: (15)

They only make the sensor for the tranny right?? I got that yesterday and then I'll check the wires tonight as well. hopefully I didnt trash my MSD's with about 5k miles on them...

StangeatinZ28

well there are sensors on the hubs to relay back to the trans. sometimes the wires by the hubs wear and rub around the wheel. check them too

Huff035

iTrader: (15)

I was thinking is a possibility, I just lowered it last week so I may have screwed something up with the wires. Is there any place online that woudl show me a pic of the wire for the rear hubs and where its located and such?

Thanks guys.

StangeatinZ28

eh that i dont know for sure. someone else might know of where to pull that out from

Huff035

iTrader: (15)

Can you trace the wires from the sensor back to the hubs or are they hidden?

StangeatinZ28

yeah, it's easier to take the wheel off. they are tucked in there pretty good

Huff035

iTrader: (15)

Yeah I'm going to anyways, i have to roll the fenders and BFH mod the inner fender wells and spray them with a rubber coating so the wheels will definitely be off, thanks for all your help man. hopefully this fixes my problem!!

quik95lt1

iTrader: (7)

If this is a 3 channel abs sensor car which I believe 93-96 were, the hub/TCS speed sensor will be located on the top of the center section of the rear end. It is held in by two bolts and there are two wires running from it. It is simply a magnetic pickup that sees the teeth of the ring gear go by. If you disconnected this that could be your problem with the TCS issue. I'd def check that out and verifiy that it is plugged in and not damaged.