p0128 code

2374 Views 8 Replies 5 Participants Last post by WOOLUF1952, Jul 21, 2009

blazzen03

Discussion Starter · May 16, 2009

i kno there many post on this topic but i have one question i dont think anyone asked. Well i just did my intake and later that afternoon i got a ses light. So when i got hom i checked it it was the p0128 code. I look at the forums to se what i can do and there was many difrnt things i noticed it coul of been the iat sensor off the intake. So this morning i got up and remonted the iat sensor and now the check engine ligth is on. So i took a drivwe to see if it would come back on it didnt.

With the below pic i posted is that a normal temp for a 15 minute ride at 57 mph on the highway thanks everyone in advanced.

See less See more

Save

1 - 9 of 9 Posts

blazzen03

Discussion Starter · #2 · May 16, 2009

also my coolant is up to level i checked that too

Save

WOOLUF1952

· #3 · May 16, 2009

That seems low. They normally sit right at 210.

Save

blazzen03

Discussion Starter · #4 · May 16, 2009

so u think i should change my thermostat..

Save

WOOLUF1952

· #5 · May 16, 2009

Yes.:thumbsup:

Save

gmac310

· #6 · May 16, 2009

That's about where mine stays too and I was also wondering if I needed to replace my t-stat. Probably explains why my mileage is crap!

Save

rbarrios

· #7 · May 17, 2009

yup, looks a little low for having been on the highway for 15 min.

Save

CAPIII

· #8 · Jul 21, 2009

I've got same problem (again) - Had it about 3 months ago and ended up just needing coolant in reservoir but checked and is good as well as coolant flowing through radiator cap. Any idea on how to replace the t-stat by Do-It-Yourself or does it involve taking off radiator entirely? HELP!!

Save