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Old 06-19-2007, 03:55 PM   #16 (permalink)
Z06 Pilot
Join Date: Mar 2005
Location: Ontario, Canada EH!
Posts: 959
Originally Posted by jub jub
Very strange. I have an 02 and my first two mods were LG long tubes and a Stinger intake. I had no such problems as you've described. In fact I never set a code due to those mods.
My '02 recieved a Halltech Stinger and LG Pros with cats also. Stock tune, that's the way the car still sits today. No problems except codes for the cats not functioning properly. I think this may be due to two things... 1. The cats may be wearing out over time... 2. The headers shed so much heat from the exhaust the cats take a long time to warm up. The codes only started showing up after the first year of driving, leaning me towards the cats being the problem.

Other than that, no issues at all.

FWIW, the way I remember it is the front sensors are not crossed, but the rears are... ? That's what I remember anyway.
'02 EB/MR Z
Halltech Stngr, LGM Pro LTs, Stock Tune, 4 18" R2's on OEM Rears
11.86 @ 118, 1.82 60' (F1's), best 60' 1.80 (R2's)
80% Track, 20% Driver, 100% Z :D
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Old 06-19-2007, 05:15 PM   #17 (permalink)
Z06 Pilot
Join Date: Feb 2003
Location: elba AL
Posts: 639
I have the same set up and am having the same codes but the car runs fine. Can the problem be coming from using the rear sensors on the front. also does somone make a extention for the harness so the front sensors can be used.

Originally Posted by paxton50
I posted this on the other Vette site and the responses I got over there seem to point to me having the stock tune and running lean which is burning up the 02 sensors...what do you guys think? I am using the rear o2's in the front location with a plug converter to allow them to plug into the front o2 harness.

I have long tube headers on my 02 Z and immediately after putting on the headers I was getting the 1133 and 1153 codes.

P1133 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
P1153 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 2 Sensor 1

I changed the o2 sensors to new Bosch units about 6 months ago, less than 2000 miles, and I am getting the 1133 and 1153 codes again. Does anyone else go through front o2 sensors this fast or is it just me? The only mods to the engine are the long tubes w/o cats and a Stinger intake.

This is really starting to frustrate me and I am seriously thinking if this is normal that I am going to have to put the stock exhaust back on. The car's acceleration is really "choppy" and not very smooth when these codes are occurring.

mods Blackwing with carbon fiber air bridge,gutted pup cats, B&B PRT's with speedway tips.
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