HELP car wont run right
05-06-2010, 04:15 PM
#1
5th Gear Member
Thread Starter
Join Date: Sep 2006
Location: Northwest Ohio (Fort Wayne Area)
Posts: 4,760
HELP car wont run right
alright guys if i can get any help it would be awesome
problem: car runs like crap until 3500-4 or higher boost started after i swapped out the clutch
things we have looked for: wiring harness that i pinched when swapping the clutch out, o2 sensors, power to o2 sensors and the rest of the wiring harness, spark plugs, and COP's.
me and my mechanic are at a loss of what it could be
problem: car runs like crap until 3500-4 or higher boost started after i swapped out the clutch
things we have looked for: wiring harness that i pinched when swapping the clutch out, o2 sensors, power to o2 sensors and the rest of the wiring harness, spark plugs, and COP's.
me and my mechanic are at a loss of what it could be
05-06-2010, 08:21 PM
#3
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
I assume we are talking about the Cobra?
Dis-connecting the battery would have cleared the KAM, forcing the PCM to learn new idle air and long term fuel trims--but it shouldn't run like crap.
What mods do you have?
Are there any DTCs?
Have you data logged it to see what the timing and fuel trims look like?
Do you have a wide band O2 sensor to see what the AFR looks like?
Double-check the pinched harness and check any related fuses...
Dis-connecting the battery would have cleared the KAM, forcing the PCM to learn new idle air and long term fuel trims--but it shouldn't run like crap.
What mods do you have?
Are there any DTCs?
Have you data logged it to see what the timing and fuel trims look like?
Do you have a wide band O2 sensor to see what the AFR looks like?
Double-check the pinched harness and check any related fuses...
05-06-2010, 08:34 PM
#4
5th Gear Member
Thread Starter
Join Date: Sep 2006
Location: Northwest Ohio (Fort Wayne Area)
Posts: 4,760
I assume we are talking about the Cobra?
Dis-connecting the battery would have cleared the KAM, forcing the PCM to learn new idle air and long term fuel trims--but it shouldn't run like crap.
What mods do you have? Kenne Bell 2.8H
Arp head studs
Arp Main Bolts
Metco Lower Pulley
NGK TR-6 Spark Plugs
JLT Cold Air Intake
Valve Job
Mod Max/CP .020 pistons 17cc
Afco dual pass heat exchanger
Accufab single blade throttle body
Diablosport MAFia
Weapon x COP's
Mcleod RST twin disk clutch
Steeda Fire wall adjuster
Steeda clutch adjuster
BBK o/r H
Bassani Cat-Back
Are there any DTCs? we tried to get some to go off but could not read any
Have you data logged it to see what the timing and fuel trims look like?
no i have not data logged it yet it has a diablo chip
Do you have a wide band O2 sensor to see what the AFR looks like? my cousin has one i was going to pull out of his car and put in mine
Double-check the pinched harness and check any related fuses...
i am going to stop over there and check all the fuses tomorrow and just going to price a new wiring harness so i dont have to deal with any future problems
Dis-connecting the battery would have cleared the KAM, forcing the PCM to learn new idle air and long term fuel trims--but it shouldn't run like crap.
What mods do you have? Kenne Bell 2.8H
Arp head studs
Arp Main Bolts
Metco Lower Pulley
NGK TR-6 Spark Plugs
JLT Cold Air Intake
Valve Job
Mod Max/CP .020 pistons 17cc
Afco dual pass heat exchanger
Accufab single blade throttle body
Diablosport MAFia
Weapon x COP's
Mcleod RST twin disk clutch
Steeda Fire wall adjuster
Steeda clutch adjuster
BBK o/r H
Bassani Cat-Back
Are there any DTCs? we tried to get some to go off but could not read any
Have you data logged it to see what the timing and fuel trims look like?
no i have not data logged it yet it has a diablo chip
Do you have a wide band O2 sensor to see what the AFR looks like? my cousin has one i was going to pull out of his car and put in mine
Double-check the pinched harness and check any related fuses...
i am going to stop over there and check all the fuses tomorrow and just going to price a new wiring harness so i dont have to deal with any future problems
.......
05-06-2010, 08:51 PM
#5
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
Heavily modded it's not inconceivable that the adaptive learning crap will need to settle in, however I really don't think that would be it--any possibility something on the back of the engine got dislodged/??? when you tilted it back to pull the tranny?
At lower engine speeds and loads you would likely be in closed loop, malfunctioning O2 sensor(s) could make it run like crap?
-cliff-
At lower engine speeds and loads you would likely be in closed loop, malfunctioning O2 sensor(s) could make it run like crap?
-cliff-
05-06-2010, 09:15 PM
#6
5th Gear Member
Thread Starter
Join Date: Sep 2006
Location: Northwest Ohio (Fort Wayne Area)
Posts: 4,760
it is not reading the right bank with 2 brand new o2 sensors. i just got off the phone with someone that has seen the same problem not reading on the right bank and it turned out to be a fuse
05-06-2010, 09:19 PM
#7
Gentleman's Relish
Join Date: Feb 2005
Location: AZ
Posts: 13,090
so what IS the DTC that lead you to Bank 2? there are several and each one means something slightly different. Is it a not ready code Bank 2 Sensor 1/2 or Heater slow to respond Bank 2 sensor 1/2??
Last edited by Derf00; 05-06-2010 at 09:23 PM.
05-06-2010, 09:29 PM
#8
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
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