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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   2006 Toyoto Camry XLE Driver Side Electric Window Trouble Hello, Looking for a little brain help ...   Tierod end change caused some kind of leak Hello so I just took my car to the nearb...   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...   Howdy     Just wanted to s...   ABS/Tractiob/Brake Lights on But No DTCs Hello all, Recently while driving m...   Chevy strut replacement I'm trying to get a sensor of some kind ...

Search Auto Parts Search No spark Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Car Troubleshooting genie New User Apr 5, 2016, 9:42 PM Post #1 of 3 (1424 views) No spark Sign In 1993 chevy sierra 2500 5.7 L Alright so i've gone and replaced the plugs coil and rotor, nothing happened then i decided to waste more money and pull the codes. Came back as ECM so i replaced that and turned it on with no codes. Let it do its thing for a bit read information and tried to start. Still no spark. Hammer Time Ultimate Carjunky / Moderator Apr 6, 2016, 2:08 AM Post #2 of 3 (1415 views) Re: No spark Sign In First off, there are no codes that mean any component is bad. They merely indicate a specific situation that requires further diagnosis. Now, what is the code numbers being set? Before the ECM change and after ECM change. Did you did this yourself? Did the transfer the PROM? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. Discretesignals Ultimate Carjunky / Moderator Apr 6, 2016, 4:16 AM Post #3 of 3 (1408 views) Re: No spark Sign In ECM won't cause loss of spark on a bypass ignition system anyway unless the ignition control module is stuck in EST (electronic spark timing) mode and the ECM is faulty at the same time, which never happens. Under 400 rpm, the ignition control module isn't in EST mode. You could unplug the ECM on a known good vehicle and you will have spark on that system. You should be looking at power and ground to the ignition control module, faulty ignition control module, and/or pickup coil problems. Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved. (This post was edited by Discretesignals on Apr 6, 2016, 4:27 AM)   Email This Post   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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