P0128 Light Jeep Wrangler

Asked by Brookelaurenx Sep 25, 2018 at 11:08 AM about the 2013 Jeep Wrangler Unlimited Sport 4WD

Question type: Maintenance & Repair

What causes the p0128 light to come on? I just got
a 2013 Jeep Wrangler unlimited sport yesterday.  
As soon as I got it, I hadn’t to get gas because
they left it on e, I then drove to work and when I
was driving home from work at the end of the night
the check engine light popped on halfway through
the drive. This morning I turned the Jeep on and
the temp gauge was all the way on C. I turned the
hot air on and it was definitely blowing hot air, I let
it sit for a few minutes then it finally got to the
halfway mark and stayed there my entire 25 minute
drive. I get to work and I check the code and it
shows no code now, just the empty dashes. Did I
actually fix the problem or does the code only
show itself a few times? I’m just wondering
because I have to get emissions tested soon and
driving with a check engine light makes me
nervous!

1 Answer

Cojen042 answered 5 years ago

Just FYI: I had my engine light come on because I was using 85 octane unleaded gas, instead of 87 like my owners manual recommends.

Mark helpful

Your Answer:

Related Questions

  • P0128 Light Jeep Wrangler 1 Answer

    What causes the p0128 light to come on? I just got a 2013 Jeep Wrangler unlimited sport yesterday. As soon as I got it, I hadn’t to get gas because they left it on e, I then drove to work and when...

    2013 Jeep Wrangler Unlimited Sport 4WD

    -

    Maintenance & Repair

  • Jeep wrangler 1 Answer

    My jeep keeps dying everything I go to take off its a 5 speed it also has a rough idle and we can't get it to stay running and my oil gauge keeps popping up but there is oil in it

    2003 Jeep Wrangler X

    -

    Maintenance & Repair

  • Jeep Wrangler 2 Answers

    Jeep had a rattling noise, as I was driving the throttle seemed to have no connection. It would not move. Had it towed to my guy at a shop, he found metal shavings in oil pan. Transmission had bee...

    1995 Jeep Wrangler

    -

    Maintenance & Repair

  • 2008 Jeep Wrangler dome light doesn't come on when drivers door open 2 Answers

    2008 Jeep Wrangler dome light doesn't come on when drivers door open,

    2008 Jeep Wrangler X 4WD

    -

    Maintenance & Repair

  • Jeep wrangler messed with 2 Answers

    My ex got under the hood and did something to my jeep wrangler so that my daughter and I couldn't leave what can I do it has lights but won't start

    2003 Jeep Wrangler Sahara

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

2013 Jeep Wrangler

Write a car review

Review another car

Shortcuts

Search Jeep Wrangler Questions

CarGurus Experts

  • #1
    Mathew Wooldridge
    Reputation
    1,490
  • #2
    djtm0500
    Reputation
    1,300
  • #3
    Nickjeep
    Reputation
    1,250
View All

Know more, shop wisely

Search

Related Models For Sale

Used Jeep Grand Cherokee
2,627 Great Deals out of 52,951 listings starting at $900
Used Ford F-150
6,075 Great Deals out of 134,056 listings starting at $1,100
Used Toyota 4Runner
1,206 Great Deals out of 16,408 listings starting at $499
Used Toyota Tacoma
2,117 Great Deals out of 35,552 listings starting at $3,500
Used Chevrolet Silverado 1500
4,253 Great Deals out of 127,829 listings starting at $2,995
Used Ford Mustang
944 Great Deals out of 21,461 listings starting at $1,651
Used RAM 1500
3,838 Great Deals out of 90,901 listings starting at $3,499
Used Dodge Charger
706 Great Deals out of 23,688 listings starting at $1,450
Used Dodge Challenger
709 Great Deals out of 19,102 listings starting at $5,995
Used Chevrolet Camaro
598 Great Deals out of 8,693 listings starting at $2,495
Used Chevrolet Corvette
765 Great Deals out of 12,482 listings starting at $2,800
Used GMC Sierra 1500
1,970 Great Deals out of 68,022 listings starting at $2,199

Used Cars For Sale

2022 Jeep Wrangler Unlimited Sport 4WD For Sale
6 Great Deals out of 68 listings starting at $28,000
2021 Jeep Wrangler Unlimited Sport 4WD For Sale
16 Great Deals out of 203 listings starting at $24,950
2020 Jeep Wrangler Unlimited Sport 4WD For Sale
17 Great Deals out of 255 listings starting at $19,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.