NVDZ28

Alright abut 2 months ago i had my car dynoed and tuned since I put Hooker LT and y pipe on the car...The computer was saying that my front passenger side O2 was not operating properly...so i said ok, since it wasn't bad enough to throw a code or anyting...about a month went by and my SES light came on and stayed on...i just now got it to Auto Zone tonight and got the codes read...The codes were: 1.P0803, skip shift solenoid 2. P0155, heater circuit for oxygen sensor 1 in bank 2. 3 P0135, heater circuit for oxygen sensor 1 in bank 1 the fourth one scared me a little bit it was a P0102, mass air flow input is lower than expected for the current engine operating conditions...I think its most likely my O2s but what is the whole Mass air flow one about???Any info is much appreciated...The car still runs strong as ever

wrencher

iTrader: (2)

How's the sensor fuse is it in one piece?

NVDZ28

What exactly is the sensor fuse and where is it located????

wrencher

iTrader: (2)

In the under hood F/box lister under sensor.

NVDZ28

alright i'll have to check it in the morning and get back to ya.......thanks for the info..

NVDZ28

can u be more specific where to look at wrencher....are you tryin to say that it might be a bad fuse or something.........thanks Patrick

wrencher

iTrader: (2)

The fuse that powers the maf also powers the O2 heater circuits.
A bad O2 can cause the fuse to pop & set these & other codes.
Do a search in this forum, it is a somewhat common problem.

NVDZ28

I did the search and found that it was a engine sensor fuse, i found it under the hood of my car....i was taking it out and lost the damn thing.....so i don't know if it was bad or anything...i ran to walmart and got one real quik, put it in...the car ran smoother but the ses light is still on........to get that off will i have to disconnect the battery??

horist

you can disconnect the battery or just continue driving.... after a few starts (not sure of exact #) of not seeing the conditions to set the SES the SES will turn off on it sown

NVDZ28

alright i just start it a couple times today and drive it around and see if it turns off...Thanks for all the info, Patrick

NVDZ28

Ok the new 20 amp fuse i put in last night was blown after i drove the car around for awhile today, so i put a 25 in it cause thats all i had....drove it one time and checked the fuse its still good so i hope this next size bigger fuse will work....i only started it once with the new fuse so it might take a couple more starts to get the ses light off, i hope..since i put a bigger fuse in this time it won't anything will it.... Thanks Patrick

NVDZ28

Went and drove the car with the 25 amp fuse in and it was blown also when i checked it...So it has to a bad 02 or something...Any other ideas??

Assassin

iTrader: (3)

change the o2, you dont wanna go too big with the fuse, you could fry alot of ****!

wrencher

iTrader: (2)

Yep got a bad o2,OR make sure the L/T's didnt burn a harness.
You had codes for both pre-cat (forward) sensor's heater circuits right?
If the wiring looks good I'd start there.

NVDZ28

I'll be home this weekend from school and have time to work on it, i'll get some new 02s and see if that does it...i'll let you guys know if that fixes it....Thanks for all the help

Smoke_Ford

i <3 wrencher