changed the spark plugs on a 2004 subaru outback 6 cylinder now check engine light comes on

Asked by Jun 01, 2014 at 12:25 PM about the 2004 Subaru Outback H6-3.0 VDC Wagon

Question type: Maintenance & Repair

we just bought the car for my daughter and changed the oil and spark plugs which were insane to changed took hours , now the check engine light is on

3 Answers

165

You purchased a great car with a great engine. It will be difficult to determine or diagnose the trouble with out scanning the ECU. Some parts stores will scan your ECU for free. In my area, Advance Auto will hook up and scan for free. You may find this could be as simple as a loose gas cap or may be an accidently displaced sensor connector (given the recent maintenance activities). Best of luck. Hope its an easy code to fix.

101,385

Have codes read. Auto zone will do this for free. Then post codes back on here and we will be able to better help you. Also might just take a minute to double check your work. All plug wires fully plugged in? Any wiring harnesses get knocked loose. Ect...

2 out of 2 people think this is helpful.
815

also make sure the sparg plug wires are seated firmly to the spark plugs amd double check the spark plug wires to make sure they are on the right spark plug this would cause a misfie ( I believe) whcih would trigger the check engine light . It is really ha5d to know without the code as stated before I hope this help and wish you the best of luck

Your Answer

Add photo

Related Questions

Outback

Looking for a Used Outback in your area?

CarGurus has 30,942 nationwide Outback listings starting at $2,000.

ZIP:

Search Subaru Outback Questions

Subaru Outback Experts

#1 Markw1952
Markw1952
Reputation 4,650
#2 FordNut
FordNut
Reputation 1,490
#3 TheSubaruGuruBoston
TheSubaruGuruBoston
Reputation 1,340
View All

Related Models For Sale

Used Subaru Forester
375 Great Deals out of 20,181 listings starting at $1,200
Used Subaru Legacy
226 Great Deals out of 17,244 listings starting at $1,200
Used Subaru Impreza
217 Great Deals out of 7,015 listings starting at $1,795
Used Honda CR-V
1,292 Great Deals out of 75,547 listings starting at $1,995
Used Toyota RAV4
1,134 Great Deals out of 54,188 listings starting at $1,350
Used Toyota 4Runner
380 Great Deals out of 20,140 listings starting at $2,499
Used Toyota Highlander
667 Great Deals out of 28,045 listings starting at $2,988
Used Toyota Tacoma
774 Great Deals out of 33,026 listings starting at $1,900
Used Jeep Grand Cherokee
1,115 Great Deals out of 69,516 listings starting at $1,500
Used Honda Accord
1,186 Great Deals out of 77,678 listings starting at $969
Used Subaru Impreza WRX
50 Great Deals out of 1,261 listings starting at $1,999
Used Toyota Camry
1,494 Great Deals out of 100,460 listings starting at $700
Used Ford Escape
1,715 Great Deals out of 85,137 listings starting at $1,350

Used Cars For Sale

2017 Subaru Outback For Sale
21,261 listings starting at $23,920
2016 Subaru Outback For Sale
34 Great Deals out of 853 listings starting at $22,461
2015 Subaru Outback For Sale
89 Great Deals out of 1,444 listings starting at $14,995
2014 Subaru Outback For Sale
77 Great Deals out of 1,720 listings starting at $10,495
2013 Subaru Outback For Sale
49 Great Deals out of 1,207 listings starting at $9,753