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601 Views 14 Replies 6 Participants Last post by  Cruzing12
New here, just bought a 2016 Cruze Premier for my daughter and with my luck I'm already having issues. So here to get some insight on this car and hopefully to gain some knowledge.

Mark
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Welcome.

What issues are you having with it?
I have a p0300 with check engine light after I changed spark plugs due to 100000 miles on odometer. It started running rough after plug change so I changed all coils. Roughness went away buy I have the p0300. The strange thing is that my code reader won't clear the codes.
I have a p0300 with check engine light after I changed spark plugs due to 100000 miles on odometer. It started running rough after plug change so I changed all coils. Roughness went away buy I have the p0300. The strange thing is that my code reader won't clear the codes.
What plugs did you use?

If they are the new AC Delco 41-156, you need to set the gap to .028"
I installed NGK 91970 gapped to .028.
Yep, those are the NGK original of the [rebranded] ACD 41-156.

At this point, I'd switch the originals back and see if the misfire disappears. Check that the throttle body hose is secure, the air filter is still on its retaining clip inside the box, etc.
There's three types on code, permanent, pending, and present. The later two one can clear with a obd2 reader... The first either has to be reset by the car, or with a real expensive obd2 reader
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There's three types on code, permanent, pending, and present. The later two one can clear with a obd2 reader... The first either has to be reset by the car, or with a real expensive obd2 reader
Yeah, the permanent one is a pain. You have to drive through so many 'cycles' for the car to see that the issue was fixed.
So its not just not being able to clear. My code reader tells me that there are multiple codes, but it will not allow me to scroll through them . So, all I see is the first code which is a p0300. Has anyone ever heard of this? I put the ACD 41156 in it still the same issue.
So its not just not being able to clear. My code reader tells me that there are multiple codes, but it will not allow me to scroll through them . So, all I see is the first code which is a p0300. Has anyone ever heard of this? I put the ACD 41156 in it still the same issue.
A code P0300 may mean that one or more of the following has happened:

Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked/leaking EGR valve / passages
Faulty camshaft position sensor
Defective computer
Read more at: OBD-II Trouble Code: P0300 Random/Multiple Cylinder Misfire Detected
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A code P0300 may mean that one or more of the following has happened:

Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked/leaking EGR valve / passages
Faulty camshaft position sensor
Defective computer
Read more at: OBD-II Trouble Code: P0300 Random/Multiple Cylinder Misfire Detected
That's a lot to check. What could be the best sequence when testing them?
Start at the top and go until you find the issue. If do not have the tools for one of them, skip until later.
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So after some time, I found that my obd2 reader that I've had for quite some time was bad. Turned out that after changing out the spark plugs and coils it just needed reset. Another code did pop up for the MAP sensor, so changed that and all is good. It's been about a week and a half and so far so good. So, what obd2 scanner is everyone using because I'm shopping around for one?
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So after some time, I found that my obd2 reader that I've had for quite some time was bad. Turned out that after changing out the spark plugs and coils it just needed reset. Another code did pop up for the MAP sensor, so changed that and all is good. It's been about a week and a half and so far so good. So, what obd2 scanner is everyone using because I'm shopping around for one?
I use the Scan Gauge II and have it mounted on the dash.

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I bought a innova obd2 reader, basically the best of what I wanted to pay at the local big box store.
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