2000 Throwing codes -- advice needed
Thread Starter
Pro
Joined: Dec 2004
Posts: 681
Likes: 2
From: The Woodlands TX
2000 Throwing codes -- advice needed
OK guys ... just finished up the h/c/headers/TC/etc install. Drove around a while, and set the following codes. I installed the O2 sensors per LG Motorsports' instructions (i.e., moved rears to the front, and I know I have them wired correctly).
Not sure what P0748 is telling me ... is the solenoid really bad? Or, could it have something to do with the TC that has been installed, and the fact that the tune is not yet done???.
Any suggestions?
Can the car be driven with these codes? I am taking it in for a tune, but wanted to drive it for a couple hundred miles to work out any bugs.
Advice???
P0748 Pressure Control Solenoid Circuit Electrical
P1134 Heated Oxygen Sensor (HO2S) Transition Time Ratio Bank 1 Sensor 1
P1154 Heated Oxygen Sensor (HO2S) Transition Time Ratio Bank 2 Sensor 1
Not sure what P0748 is telling me ... is the solenoid really bad? Or, could it have something to do with the TC that has been installed, and the fact that the tune is not yet done???.
Any suggestions?
Can the car be driven with these codes? I am taking it in for a tune, but wanted to drive it for a couple hundred miles to work out any bugs.
Advice???
P0748 Pressure Control Solenoid Circuit Electrical
P1134 Heated Oxygen Sensor (HO2S) Transition Time Ratio Bank 1 Sensor 1
P1154 Heated Oxygen Sensor (HO2S) Transition Time Ratio Bank 2 Sensor 1
Last edited by double-oh-coupe; May 8, 2007 at 09:40 PM. Reason: added info
Unless you like burning up your trans.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 326
From: CA.
St. Jude Donor '13-'14-'15
The P0748 code is caused by the stall converter installation---I assume that's what you mean by "TC"
Whenever doing a stall converter you MUST delete all TQ management
Also a good idea to return all line pressures back to stock
The P1134 & P1154 are all from the LT install--You should turn the associated processing enablers to "not reported" and the mill enablers to
"no mill"--on any of the O2 codes you are getting---
Make sure however that your 02 voltages are oscillating in closed loop
(part throttle) and that they are locking on a voltage at Power enrichment --WOT. The LT's are producing false codes so it is OK to turn those enablers off but you don't want to turn off an enabler on a REAL fault or problem A real 02 code usually makes the engine run horrible anyway--
Whenever doing a stall converter you MUST delete all TQ management
Also a good idea to return all line pressures back to stock
The P1134 & P1154 are all from the LT install--You should turn the associated processing enablers to "not reported" and the mill enablers to
"no mill"--on any of the O2 codes you are getting---
Make sure however that your 02 voltages are oscillating in closed loop
(part throttle) and that they are locking on a voltage at Power enrichment --WOT. The LT's are producing false codes so it is OK to turn those enablers off but you don't want to turn off an enabler on a REAL fault or problem A real 02 code usually makes the engine run horrible anyway--
