Thread: Rough Idle/ Misfire(?) NO CODES!

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P0171 and P0300 Codes, Mildly Rough Idle, Rough on starts, Slightly Elevated Idle

By nskyline34 in forum 3.8L V6 Supercharged (L67)(L32)

Replies: 26
Last Post: 07-17-2021, 07:49 PM
rough idle, possible misfire?

By 04lss in forum 3.8L V6 Supercharged (L67)(L32)

Replies: 15
Last Post: 11-20-2014, 10:02 PM
99 GTP Troubleshooting- rough idle, misfire? No codes (warning very NOOB)

By Juxtaghost in forum 3.8L V6 Supercharged (L67)(L32)

Replies: 11
Last Post: 11-17-2012, 02:29 PM
Odd rough sound at idle...possible misfire?

By Spartanzz in forum 3.8L V6 Supercharged (L67)(L32)

Replies: 7
Last Post: 02-09-2011, 01:06 AM
Another idle surge/misfire problem with multiple codes

By Justinzoso in forum 3.8L V6 Naturally Aspirated (L36)(L26)

Replies: 6
Last Post: 06-04-2010, 11:43 AM

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