Rough Idle & Running HELP!
Thread Starter
Burning Brakes
Joined: Mar 2015
Posts: 918
Likes: 158
From: Fort Wayne IN
Rough Idle & Running HELP!
I have a 2006 Z06, Black Panther P3 Cam, Stock Intake, Ported TB, ARH 1 7/8 Catless Headers and rear O2 sensors removed. The car has not been tuned yet, I've drove the car and the car seems to run great, idle is lower than what it should be but for the most part it drives fine. I parked the car last night after getting home and went to finish up my LNC2000 and NX controller wiring today, wired it up, started the car and it idled like crap, and wouldn't even take throttle. I unplugged the LNC & NX box and the car is still doing the same. We scanned for codes and got a random engine mis fire, installed new spark plugs, same issue, cleaned the MAF & MAP sensors, same issue. The scanner is throwing a bunch of codes for the O2 sensors, could the car not being tuned have made the O2 sensors go bad? The only reason why it wasn't tuned yet is because I had to wait for an opening and was actually scheduled to hit the dyno this Wednesday. I can't figure out the problem. The car is not displaying the "Reduced Engine Power" light either.
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
I have a 2006 Z06, Black Panther P3 Cam, Stock Intake, Ported TB, ARH 1 7/8 Catless Headers and rear O2 sensors removed. The car has not been tuned yet, I've drove the car and the car seems to run great, idle is lower than what it should be but for the most part it drives fine. I parked the car last night after getting home and went to finish up my LNC2000 and NX controller wiring today, wired it up, started the car and it idled like crap, and wouldn't even take throttle. I unplugged the LNC & NX box and the car is still doing the same. We scanned for codes and got a random engine mis fire, installed new spark plugs, same issue, cleaned the MAF & MAP sensors, same issue. The scanner is throwing a bunch of codes for the O2 sensors, could the car not being tuned have made the O2 sensors go bad? The only reason why it wasn't tuned yet is because I had to wait for an opening and was actually scheduled to hit the dyno this Wednesday. I can't figure out the problem. The car is not displaying the "Reduced Engine Power" light either.
Racer
Joined: Nov 2013
Posts: 317
Likes: 7
From: tampa fl
Thread Starter
Burning Brakes
Joined: Mar 2015
Posts: 918
Likes: 158
From: Fort Wayne IN
I replaced all the plugs with TR6 and went and bought plug wire late last night. Will check and replace plug wires tonight. Hopefully get it figured out so I can make dyno tomorrow!
Melting Slicks
Joined: Oct 2010
Posts: 2,220
Likes: 16
From: Sugarhill Ga
you may want to pull the valve covers and recheck the torque of the rocker arms. it would not hurt either to check and see if the cam sensor has come unplugged on either side of the extension,
Thread Starter
Burning Brakes
Joined: Mar 2015
Posts: 918
Likes: 158
From: Fort Wayne IN
I'm hoping it is something small and not a broken valve spring, that would suck. The car has Brian Tooley Dual Valve Springs, purchased from Carlos @ Vette-Air.COM when I bought the cam, I bought the valve spring kit as well...
Hopefully it is something small and stupid, driving me crazy!
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
Did you get into the throttle wires when you wired the nitrous and the launch control? I imagine you did. Those wires are very sensitive to shorts...check for any shorts there or perhaps you cut a wire by mistake.
Since it ran decent before you got into that wiring, and now it doesn't, that is where I'd look for the cause.
Since it ran decent before you got into that wiring, and now it doesn't, that is where I'd look for the cause.
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Thread Starter
Burning Brakes
Joined: Mar 2015
Posts: 918
Likes: 158
From: Fort Wayne IN
I found the issue. There was one bent pin on the LNC2000 connector to coil pack and had the whole passenger side shut down. I had it tuned this morning and made 535/499tq. I went to the test and tune night and ran an 11.68 @ 128. I was going to spray 50 shot but it didn't activate for some reason. These Michelin 19s suck. I'm spinning thru second gear. Will get a 10 second motor pass soon. Thanks for the help guys!