My mods are in the sig..for the longest time I would get a high rpm miss once in awhile (around 5,800-6,200). It felt like a revlimiter almost. A few months back my SES light popped on and I have driven with it on for awhile..my wiring harness got burnt on the one side of the header and cause my knock sensor (not the module..the sensor on the side of the block) wire to burn. I got the harness fixed up, but my SES light popped on again, this time for the actual knock sensor. Got it replaced, and the car runs smooth as silk. For the longest time I believe the knock sensor was on its way out, and I got no SES light untill it really crapped out. Just thought I would let some of you know that the knock sensor might solve your high rpm miss because of it detecting false knock and pulling timing, etc.

-Corey

 

TTT.

 

Right on! glad you got your stumble fixed. mine was a burnt coil / coil wire...
feels nice to have the car running well doesn't it?

-mj

 

Corey,
Glad to here the car is running good for ya.

Scott

 

i have a stumble at 5500 rpm and the light came on and said it was the opti-spart not receiving signal.

 

my car occasionally misses too at around 5500, i have only 26k miles on her and no headers, but i do have a cut out. Could that be enough to upset the Knock Module?

R/ Sc00bs

 

Chances are its your coil wire like everyone else...

 

Weird....Same thing happened to me. After my header install the knock sensor wire got burnt and was grounded. I was getting around 12 degrees and the car was missing pretty bad. After I fixed the wire the car ran great. About 3 months later I got a low rpm stumble. When it starts to stumble I get around 4 degrees of knock and I'd get more knock when it was raining. A month later I started to get a high rpm miss too. I've pretty much replaced or checked every part on the car. I'm gonna do heads and cam in the next 2 months so hopefully that will fix it.

 

Good info GigaMp3z! I'm trying to chase down a high rpm miss right now... and I'll be sure to check that out. Thanks!

Steve

 

Thanks..you did a good job. Now something in the suspension is broken...I have no luck with this car. Im hoping I get it back before Sunday, because Im wanting to go to the grove.

-Corey

 

With only 26k its hard to say what it is thats your problem..but you don't necessarily need to have headers for your knock sensor to go bad, my wire for the knock sensor got burnt also..just two things sorta happened at once.

-Corey

 

I've been dealing with a high RPM hesitation problem for almost two years now. Dealer replaced the opti and problem began. Took car in many times and they said nothing was wrong. Replaced cap and rotor and problem stayed. Decided to replace opti one last time before giving up and looked inside opti plug and whoa.......green crap(corrosion). The corrosion damaged opti. So bought new opti and harness and problem fixed. I would sat that the $100.00 harness and a possible bad replacement opti did the trick. In other words, always check your harnesses for breaks, hard spots, and corrosion. My car jumpped from 13.55 to 13.10's on street tires.


96 SS #667 A4

Mods: crane 1.6 rr's, lakewood LCA's and adjustable panhard, BBK 1 5/8 shortie headers, 2800 vig, SLP 2otl exhaust, MSD coil & wires, SLP CAI, stock TB w/airfiol, 3.42 gears

Best Time R/T 60 ft mph

13.12 6.96 1.87 103.8

 

I know the feeling...I'm chassing a ghost...i feel something different in the car that no one else seems to feel. I know i only feel it cause she's my baby and I know her. After I missed a shift from 2 to 3, I grinded the gears real bad, the car bucked and immediatly after that at idle, the vibrations i usually feel through the car feel rougher, raw (like metalic part rubbing without lubricant??), and louder...anyways, I've just imposed on my own thread

-mj