How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Tim's Auto Repair Your Own Question
Tim's Auto Repair
Tim's Auto Repair, mechanic
Category: Chevy
Satisfied Customers: 15375
Experience:  Have owned a repair shop for 25 yrs.
Type Your Chevy Question Here...
Tim's Auto Repair is online now
A new question is answered every 9 seconds

1998 chevy: PO452 (EVAP fuel tank pressure sensor low input) What

Resolved Question:

I have a 1998 chevy S-10 4.3v6 with 2 trouble codes. One is PO113 (IAT sensor circuit high input) the other is PO452 (EVAP fuel tank pressure sensor low input) What do i check to fix these problems? It has a rough idle and will not take the fuel when giving it gas it pops inside the air breather end spark knocks badly!!
Submitted: 7 years ago.
Category: Chevy
Expert:  Tim's Auto Repair replied 7 years ago.


the problem may be the maf/map sensor...this could make the iat show up...the iat would not cause your truck to run bths badly....the o452 code may be on because the gas cap could have been left loose at some time...neither would make the truck ron this may need to check the fiel presure..the pump may be weak


please ACCEPT my answer so I can get credit for my work.i don't receive commission unless you do .it does not cost you more money.we will still be able to communicate.. Bonuses and positive feedback are appreciated!if you are not satisfied with my answer,please do not leave bad feed back,i will gladly opt out and let another expert handle the question.PLEASE ASK IF YOU NEED MORE HELP

Tim's Auto Repair and 4 other Chevy Specialists are ready to help you

Related Chevy Questions