kevinj4891

throwing a P0130 code. originally i was receiving a P0420, which i fixed by adding an "L" spacer on the second O2 sensor. now im receiving the 0130. i have the V2 headers with header wrap and a vibrant downpipe with high flow cat. do you thing my O2 sensor got messed up in the install or is there another problem? i have a reader and try to clear it, but it comes back. tried to clear it, disconnect battery, and clear again...no help. still comes back. any help would be great

thanks

Coblasts

P0130 cause
Heated oxygen sensors (HO2S) are used for fuel control and post catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content in the exhaust stream. The HO2S must reach operating temperature to provide an accurate voltage signal. Heating elements inside the HO2S minimize the time required for the sensors to reach operating temperature. The powertrain control module (PCM) supplies the HO2S with a reference, or bias, voltage of about 450 mV. When the engine is first started the PCM operates in open loop, ignoring the HO2S voltage signal. Once the HO2S reaches operating temperatures and Closed Loop is achieved, the HO2S generates a voltage within a range of 0-1,000 mV that fluctuates above and below bias voltage. High HO2S voltage indicates a rich exhaust stream. Low HO2S voltage indicates a lean exhaust stream.

If the PCM detects the loop status is open too long, DTC P0130 will set.

kevinj4891

so this means that my O2 sensor is not getting hot enough, setting off the code? which means that i need a new O2 sensor? will my reader be able to clear the code or will the dealer need to be involved?

slowswap

Maybe it's to far from the exhaust stream so it can't heat up fast enough. Just throwing ideas out there.

kevinj4891

thats basically my set up, minus the wrap on the header. should work fine

slowswap

Picture of said "L" spacer.

TurboTommy

iTrader: (1)

subbed for fix

kevinj4891

it looks like this...


it gaps your O2 sensor out a little so it reads correctly with an aftermarket cat/exahust. this l works the best because the spark plug non foulers don't give enough space and the frame of the car is too close to the O2 sensor location. i have this adaptor on the REAR sensor, the front one is still untouched

kevinj4891

i was just thinking, since i put in a new header, do you think the smoke / gases from the new welds smothered the O2 sensor and ruined it? maybe a new O2 sensor will get rid of it?

any one else have a suggestion??

JapEatr

iTrader: (9)

replace the o2 sensor with a GM ACDELCO one. do not use a Bosch or aftermarket as the heater circuits are not the same.

D4u2s0t

It has nothing to do with how hot it's getting...

The possible scenarios are one of the wires is torn, (most likely) the harness is not connected, or the 02 sensor is bad.

First thing to do is get under the car, check your secondary 02 sensor, and follow the wires all the way up to make sure there's no tears or cut wires. If that checks out, Make sure the harness is plugged in properly.

The rear 02 sensor does not affect driveability, and the code can be shut off without worry. (with hp tuners, can't shut it off with a scanner)

kevinj4891

i know the rear one is fine. i started with a 0420 code, which is the rear O2 sensor. i bought the "L" adapter and fixed that, but then i started the 0130 code, which is the first sensor. i know that when i put on the exhaust, driving it kinda hard right away i smelt the welds and what not. i was thinking that may have done it. i am gonna look to make sire all the wires are ok, when i get some time. assuming the wire is not in or the sensor is bad and i fix it, will i be able to clear the code or is this a dealer thing?

Maven

iTrader: (1)

P0130 is usually a bad O2 sensor, a heater in the sensor if bad but not completely failed can cause this issue.

But its just as often a wiring problem, it can be a PCM issue too.

JapEatr

iTrader: (9)

^^^this...tried to tell ya, had this happen several times prior to replacing the header

Iam Broke

iTrader: (10)

Since you are catless (I presume from the pic) you need someone with HP Tuners to disable the code. It's meaningless in your case. Don't waste $$$ on a second 02 sensor.

I threw the code a few times on my catless DP until I disabled it.

Maven

iTrader: (1)

P0130 isnt a code for the after cat sensor, thanks for playing try again anytime.

Iam Broke

iTrader: (10)

I'm soooo confused...

Sorry.

kevinj4891

i am not catless, as stated earlier. going do a once over around X-mas time when i have 2 weeks off. if all the wiring is good, im gonna pull the sensor. im willing to bet it's black and clogged from the welds in the headers. if thats the case i'll buy the AC delco one, not the bosch

kevinj4891

*** update

still haven't had time to check. tried to get a new sensor just for the hell of it so when i get time, i can just replace it. this is what i came up with....

Pep boys (Joke boys as we call it) --- $105.99 didn't have stock, said they would order it..i asked about it, said it was Bosch. i said forget about it cuz as previously posted, Bosch is different then the AC Delco one

Kragen --- guy checked on computer, literally said "WTF". Says that they can't ever get that part in.

Dealer --- swent on saturday and it was closed. don't know price or availability. Gonna get the girlfriend to inquire during the week

kevinj4891

UPDATE

went to the dealership...best price so far, around $90 after taxes, gonna install it soon

Jaemon52

****...I just put in a bosch...I'm assuming this is why I still have the CEL with a stock DP...

kevinj4891

possibly, but i think i've read before that when it comes to certain emission things, the dealer might have to clear the code specifically, not a cheap reader... i'll have to research that unless someone can help