2009 Hyundai Accent misfires

5

Asked by Jul 18, 2017 at 12:07 PM about the 2009 Hyundai Accent GL Hatchback

Question type: Maintenance & Repair

2009 Accent - 1.6L
Getting P0300
What I have done - New plugs, new coil packs, swapped injectors to see if
misfire followed, new coil wires, tested cam position sensor and crank
position sensor, cleaned MAF sensor, did compression test.
Here's the weird - The original reading from the OBD was P0300-P0304 and
occasionally P0302.  Then started getting all three consistently, random and
2 and 4.  Finally gave up and took it to the dealership.  They first said it was
the coils.  I explained that I had already eliminated that possibility.  Then they
said they were communicating with Hyundai to diagnose the problem.  Then
they said it was a blown head gasket.  With no other symptoms indicating
head gasket issues I assumed they were just guessing. (Compression was
even on all 4 cylinders.)  Picked up the car and hooked up the OBD - now I
get P0300-P0301-P0303 ... consistently!  The misfire has moved from 2&4 to
1&3 and the dealer says they did nothing to the car.

What the heck could cause that?

2 Answers

30

O2 sensors promise

5

Turned out to be the camshaft position sensor. Tested okay but I replaced it anyway. Problem fixed.

Your Answer

Hyundai Accent Experts

  • #1
    karibt
    Reputation
    1,120
  • #2
    dvigano
    Reputation
    990
  • #3
    Tom Demyan
    Reputation
    790
View All

Related Models For Sale

Used Hyundai Elantra
189 Great Deals out of 3,390 listings starting at $2,295
Used Honda Civic
297 Great Deals out of 3,484 listings starting at $995
Used Toyota Corolla
195 Great Deals out of 3,796 listings starting at $2,245
Used Hyundai Sonata
48 Great Deals out of 1,394 listings starting at $2,114
Used Ford Focus
113 Great Deals out of 2,721 listings starting at $1,100
Used Kia Rio
51 Great Deals out of 683 listings starting at $4,495
Used Nissan Versa
46 Great Deals out of 413 listings starting at $1,999
Used Honda Accord
83 Great Deals out of 1,054 listings starting at $1,200
Used Toyota Camry
56 Great Deals out of 1,964 listings starting at $750
Used Mazda MAZDA3
175 Great Deals out of 2,674 listings starting at $880
Used Toyota Yaris
48 Great Deals out of 777 listings starting at $2,114
Used Ford Fiesta
54 Great Deals out of 734 listings starting at $2,948
Used Nissan Sentra
202 Great Deals out of 1,673 listings starting at $3,495
Used Kia Forte
80 Great Deals out of 1,312 listings starting at $3,499

Used Cars For Sale

2017 Hyundai Accent GL Hatchback For Sale
69 listings starting at $13,845
2016 Hyundai Accent GL Hatchback For Sale
43 listings starting at $10,990
2015 Hyundai Accent GL Hatchback For Sale
15 listings starting at $9,908
2014 Hyundai Accent GL Hatchback For Sale
25 listings starting at $7,877
2013 Hyundai Accent GL Hatchback For Sale
41 listings starting at $6,881

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.