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#1 cylinder misfiring electrical problem. Audi A3 Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Automotive Wiring and Electrical curtains User Oct 12, 2010, 6:27 PM Post #1 of 3 (2232 views) #1 cylinder misfiring electrical problem. Audi A3 Sign In I'm trying to fix my brothers Audi A3 for him cause hes too poor to get it fixed (between jobs at the moment) and I'm sick of him borrowing my car. Anyways the gist of the problem is one of the cylinders is not firing #1 cylinder to be precise, I've checked, the spark plugs by replacing with 4 new ones, checked the coil packs swapping them around (and still only cylinder 1 misfires), checked fuel as #1 cylinder spark plug is wet and smells like petrol, checked compression just by cranking the engine without spark plug in, and theirs definitely compression. so I assume its the lines or the ECU? how do I test this if its the line or ECU? or do i have to take it to an auto electrician. the cars a 99 Audi A3 1.8T auto (This post was edited by curtains on Oct 12, 2010, 6:29 PM) Hammer Time Ultimate Carjunky / Moderator Oct 12, 2010, 6:41 PM Post #2 of 3 (2224 views) Re: #1 cylinder misfiring electrical problem. Audi A3 Sign In What is the compression reading? Use a noid light and check for pulse at the coil plug. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. crazyhorse357 Novice Oct 20, 2010, 10:39 PM Post #3 of 3 (2200 views) Re: #1 cylinder misfiring electrical problem. Audi A3 Sign In   Have you used a compresson gauge to check compression? The Procrastonaters Creed " Never do today that which can be put off until tomorrow." 1993 Chevy G20 van 164,000 Mi. 1997 Lincoln Town Car 163,000 MI.   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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