Tuning help in Massachusetts
Thread Starter
Staging Lane
Joined: Oct 2003
Posts: 52
Likes: 0
Tuning help in Massachusetts Hi All,
I have a near stock 2000 Z28 which has been haunting me with constant P1133 codes. I have done everything remotely connected to this code, including the dealer (ouch) Im overdue on state inspection and have reached the point where turning P1133 and P1153 to NR is the only solution. This car does not have long tubes, but new O2 sensors, cats, etc on and otherwise low 70k mile motor.. Anyone know of a shop who might help? My local mechanic is great for mechanical, but readily admits this is beyond him.. Thanks,
Jim
I have a near stock 2000 Z28 which has been haunting me with constant P1133 codes. I have done everything remotely connected to this code, including the dealer (ouch) Im overdue on state inspection and have reached the point where turning P1133 and P1153 to NR is the only solution. This car does not have long tubes, but new O2 sensors, cats, etc on and otherwise low 70k mile motor.. Anyone know of a shop who might help? My local mechanic is great for mechanical, but readily admits this is beyond him.. Thanks,
Jim
Thread Starter
Staging Lane
Joined: Oct 2003
Posts: 52
Likes: 0
Fixed I think I have solved my present problem, but will be going to Slowhawk in the future when a cam and heads make their way to my garage.
For anyone who has struggled with P1133 and P1153 codes, I did find out two things.
First, I am on my third Denso on the drivers side pre-cat. This one switches exactly like the passenger side pre-cat sensor, and the codes went away. The two Densos in the rear measure almost identical in static voltage and resistance testing, but switch a bit ragged compared to the front two. This was surprising, since all the sensors were brandy new, and sealed.
Second, Dealers suck. Cant they be honest about anything? They swore I had wiring harness shorts and 'high impedance', which they couldn't even explain, and wanted $500 to run 4 new wires to the drivers front O2 sensor, and would not gaurantee it would solve the problem. I spent 2 hours checking all my sensor wiring, and there wasnt even 1/2 ohm difference on any of them. Swapped my front to back sensor on that side and everything cleared up. (the rears dont need to pass a switching diagnosic test)
Sorry for my rant, Im pissed.
For anyone who has struggled with P1133 and P1153 codes, I did find out two things.
First, I am on my third Denso on the drivers side pre-cat. This one switches exactly like the passenger side pre-cat sensor, and the codes went away. The two Densos in the rear measure almost identical in static voltage and resistance testing, but switch a bit ragged compared to the front two. This was surprising, since all the sensors were brandy new, and sealed.
Second, Dealers suck. Cant they be honest about anything? They swore I had wiring harness shorts and 'high impedance', which they couldn't even explain, and wanted $500 to run 4 new wires to the drivers front O2 sensor, and would not gaurantee it would solve the problem. I spent 2 hours checking all my sensor wiring, and there wasnt even 1/2 ohm difference on any of them. Swapped my front to back sensor on that side and everything cleared up. (the rears dont need to pass a switching diagnosic test)
Sorry for my rant, Im pissed.
TECH Regular
Joined: Sep 2010
Posts: 486
Likes: 0
From: Mass
I wont ever bring my F-body to a dealer for work. They always screw you on pricing, and a lot of the time they wont fix your problems, just change out parts hoping it will fix the problem instead of FINDING the problem then fixing it. Ill try to do everything myself and if i cant ill bring it to a well known lsx builder.
