car bucks and sputters at WOT 5500-6300 RPM
07-10-2011, 11:22 PM
#1
car bucks and sputters at WOT 5500-6300 RPM
I have had the car for 11 days. 2001 ZO6 53000 miles. It started doing this saturday afternoon. It drives fine until you get into the upper rpm range. Here are the codes that i pulled
C1226H, C1283H,C1293H
U1016H,U1040H,U1096H,1064H,U1088H,U1176H
B2282H,B2284H,B2283H,B3385H.
i reset the codes and went on a 10 mile or so drive, i once again ran it into the upper rpm range and it didnt buck as violently this time but it was noticable. This is the only code that came back C1226H. When you run it into the upper rpm range and it bucks and sputters if you coast and let the car idle it will surge and then shut-off. When you restart the car it will run fine until you dog it again.
C1226H, C1283H,C1293H
U1016H,U1040H,U1096H,1064H,U1088H,U1176H
B2282H,B2284H,B2283H,B3385H.
i reset the codes and went on a 10 mile or so drive, i once again ran it into the upper rpm range and it didnt buck as violently this time but it was noticable. This is the only code that came back C1226H. When you run it into the upper rpm range and it bucks and sputters if you coast and let the car idle it will surge and then shut-off. When you restart the car it will run fine until you dog it again.
07-11-2011, 01:29 PM
#3
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
Sounds like a cylinder misfire issue. It could also be a spring issue but, please see if you see any miss fire DTCs
Does the CHECK ENGINE LIGHT (CEL) Flash when the car bucks??? If the CEL flashes during the issue, you have a misfire.
If you read the DTCs immediately after the problem happens (without turning off the ignition) you should see the P-0300 DTC if it is there)
When you turn off the ignition, that code clears and you will not see it.
Bill
Does the CHECK ENGINE LIGHT (CEL) Flash when the car bucks??? If the CEL flashes during the issue, you have a misfire.
If you read the DTCs immediately after the problem happens (without turning off the ignition) you should see the P-0300 DTC if it is there)
When you turn off the ignition, that code clears and you will not see it.
Bill
