Live Data
Last reported case: 1 months ago
Based on 4 owner reports (1 from Reddit, 3 from forums)
What is P0304?
🚗P0304 on 2010 CHEVROLET Spark
This page focuses specifically on P0304 issues reported by 2010 CHEVROLET Spark owners. The experiences and fixes below are from real owners of this exact vehicle.
Symptoms Reported by 2010 CHEVROLET Spark Owners:
cylinder misfiresrandom misfiresswellingmisfiresputtering soundsspark escapemisfirescheck engine lightrough idlesmoke
Parts Often Involved:
ecmexhaustpumpcoilvalve lashengine control modulepcv valvecoil packcrank/cam shaftbattery
What Owners Say
Real experiences from 2010 CHEVROLET Spark owners
Experiencevia reddit_post
“Could cyl 1's coil still be good (I kept it, just in case) and I should put that in cyl 4? The head gasket was replaced in April and the spark plugs were all changed in November.”View original
Experiencevia reddit_post
“P0301 cyl 1, P0300 Random/multiple (one stored, one pending), P0304 cyl 4. O'Reilly only had one so I went ahead and replaced the one in cylinder 1. (cylinders 2, 4, and 6 are easy to get to so I figured I'd just wait and see what happens.)”View original
Pro Tipvia forum_reply
“By following these steps, you should be able to pinpoint the issue and get your 420A engine running smoothly again. Let me know if you'd like more details on how to carry out any of these tests!”View original
Pro Tipvia forum_reply
“Perform Compression Test : If compression is low, you might need a rebuild or repair work. By following these steps, you should be able to pinpoint the issue and get your 420A engine running smoothly again.”View original
Experiencevia forum_post
“None have came on at the same exact same time since I’ll try and fix something and I reset the codes but they eventually return. I changed the spark plug wires and spark plugs at 178,400 miles with the NGK wires and NGK G-power platinums spark plugs last year in July.”View original
Experiencevia forum_post
“I changed the spark plug wires and spark plugs at 178,400 miles with the NGK wires and NGK G-power platinums spark plugs last year in July. The first code I got was p0303 back in November last year.”View original
Experiencevia forum_post
“Seems unlikely. After 15 minutes of idling the ECU finally lit the CEL and stored 3 codes: P0300, P0301 & P0303 plus still pending P1399. I need HELP for next step!”View original
Experiencevia forum_post
“No other codes now but have seen P0300 to P0304 when the problem started. Runs and drives well warming up, but once the idle comes down to 735 RPM, we get sporadic misfires, maybe 40 per minute, very random in groups of 2 or 3 even 5 in succession.”View original
These are real experiences shared by 2010 CHEVROLET Spark owners on automotive forums and communities. Results may vary based on vehicle condition and repair quality.
About This Data
This page aggregates 4 discussions about P0304 from 2010 CHEVROLET Spark owners across automotive communities.
Success rate (50%) is calculated from posts where owners confirmed whether their fix resolved the issue.
Last updated: 12/18/2025