Codes. Do I need to replace stuff?
Thread Starter
On The Tree
Joined: Apr 2007
Posts: 106
Likes: 0
From: MS
Codes. Do I need to replace stuff? I just checked a code on my 02 WS6 Trans am. There were 5 in all. P0102 Mass air flow low input, P0128 Coolant Thermostat/valve temp below control range, P0135 02s heater circuit bank1 sensor 1 malfunction, P0153 02s circuit bank2 sensor 1 slow response, P0155 02s heater circuit bank 2 sensor 1 malfunction.
The screen has been gone from the mass air sensor sense I have owned it. The car has Long tube headers and I lengthened the 02s and have had nothing but the codes P0135, P0153, P0155 I used wire nuts and a lot of tape (bad?). What about this P0128???????????
I have a 93 tune using a Diablo tuner and I turned off the rear 02s.
Thanks for any help
Vinny
The screen has been gone from the mass air sensor sense I have owned it. The car has Long tube headers and I lengthened the 02s and have had nothing but the codes P0135, P0153, P0155 I used wire nuts and a lot of tape (bad?). What about this P0128???????????
I have a 93 tune using a Diablo tuner and I turned off the rear 02s.
Thanks for any help
Vinny
I just checked a code on my 02 WS6 Trans am. There were 5 in all. P0102 Mass air flow low input, P0128 Coolant Thermostat/valve temp below control range, P0135 02s heater circuit bank1 sensor 1 malfunction, P0153 02s circuit bank2 sensor 1 slow response, P0155 02s heater circuit bank 2 sensor 1 malfunction.
The screen has been gone from the mass air sensor sense I have owned it. The car has Long tube headers and I lengthened the 02s and have had nothing but the codes P0135, P0153, P0155 I used wire nuts and a lot of tape (bad?). What about this P0128???????????
I have a 93 tune using a Diablo tuner and I turned off the rear 02s.
Thanks for any help
Vinny
The screen has been gone from the mass air sensor sense I have owned it. The car has Long tube headers and I lengthened the 02s and have had nothing but the codes P0135, P0153, P0155 I used wire nuts and a lot of tape (bad?). What about this P0128???????????
I have a 93 tune using a Diablo tuner and I turned off the rear 02s.
Thanks for any help
Vinny
Buy new larger O2, or buy extensions and new std-lenght O2.
O2 sensor cables must not be lenghtened, cut or disturbed in any way.
Eng sensor fuse powers the MAF and the O2 heaters, the heaters are the most likely trouble spot especially on a car with long tubes. P0128 needs other codes set IAT ECT or MAF to set so fix the maf and O2s first.
Slow switching or heater codes are seem to be common on long tube cars you need good sensors and even then you can still get the codes on a cold rainy day.
A set of corvette rear O2s and a fuse could fix it all or the Po128 may still be a problem
what do the IAT and ETC read cold ? Should be within a few degrees of each other.
Slow switching or heater codes are seem to be common on long tube cars you need good sensors and even then you can still get the codes on a cold rainy day.
A set of corvette rear O2s and a fuse could fix it all or the Po128 may still be a problem
what do the IAT and ETC read cold ? Should be within a few degrees of each other.
seen this o2 codes and maf code all at the same time like everyone has said if you have a bad wire on the o2 heater it will pop the cig fuse. as per p0128 probably better plan on a therm unless you have put a 160 in it and didnt tune the computer to lower temp thresholds.
Thread Starter
On The Tree
Joined: Apr 2007
Posts: 106
Likes: 0
From: MS
What year Vette or what is a good 02 replacement? I actually used the wires that came with the Pace setter headers to lengthen the 02s. What is the stock temp range for a stock thermostat?
Thanks guys for the help. I swear I don't know how ya'll do it.
Vinny
Thanks guys for the help. I swear I don't know how ya'll do it.
Vinny
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