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'02 trl blzr p-0301 Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Engine ODB2 Fault Codes spike New User Aug 12, 2006, 5:29 PM Post #1 of 5 (2299 views) '02 trl blzr p-0301 Sign In This code is for the number 1 cylinder misfiring is there anyone that knows what to check/change first? I just priced the coil and I hope it is not the problem($$$$$). The plug has already been changed. What is next. Is there one common problem that is recurring in this car that I need to know about? Any info? THANKS DanD Veteran / Moderator Aug 14, 2006, 2:40 AM Post #2 of 5 (2288 views) Re: '02 trl blzr p-0301 Sign In Could you not try switching coils around and see whether the misfire follows the coil? Dan. Canadian "EH" timszr2 Novice Oct 25, 2006, 7:19 PM Post #3 of 5 (2226 views) Re: '02 trl blzr p-0301 Sign In my zr2 only HAS ONE COIL. 02 BLAZ SHOULD BE THE SAME 99 zr2 steve01832 Veteran Oct 26, 2006, 3:18 AM Post #4 of 5 (2225 views) Re: '02 trl blzr p-0301 Sign In I would start with a compression test. If it's OK then check for spark at the plug. If that checks out fine, try cleanig the injectors with a kit you can obtain through the dealer. Steve DanD Veteran / Moderator Oct 26, 2006, 4:37 AM Post #5 of 5 (2223 views) Re: '02 trl blzr p-0301 Sign In Hey timszr2 Maybe we should do a little research before YOU MAKE A STATEMENT! A 99 ZR2 or a 2002 Blazer are not the same vehicle as a 2002 Trail Blazer. Yes the ZR2 and the Blazer only have the one coil but the Trail Blazer has individual coils my friend. That’s why I suggested switching coils. Dan. 02 Blazer ignition 02 Trail Blazer Canadian "EH"   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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