no spark in 1 + 4 Cyl.
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no spark in 1 + 4 Cyl. vmprklr 04-19-2004, 10:57 PM
(92 2.2 ltr) No spark in cylinders # 1 and 4. Replaced coil and wires, still no spark. Car was running great, stopped at light, had no power upon start up. any suggestions? C_Sephiroth 04-20-2004, 07:17 AM Might be the Ignition Module. Three_Fingers 04-20-2004, 08:19 PM Check power lead(s) to 1+4 coil(s) for voltage. Check crank sensor-it needs to see the #1 TDC position to start the module's firing sequence. vmprklr 04-20-2004, 10:21 PM Check power lead(s) to 1+4 coil(s) for voltage. Check crank sensor-it needs to see the #1 TDC position to start the module's firing sequence. If the crank sensor doesn't see the #1 tdc , why does the other coil # 2 and 3 still fire? To test the coils power leads , are they the connectors to the left of the plug wire posts? and do I have to crank the engine while testing or just have the ignition on? Three_Fingers 04-21-2004, 06:10 PM To test, you only need ignition on. Should be 12v. Some coil setups, the module takes over after #1 fires-my 2.0-integrated module pack uses a waste spark distribution system like a Harley. It works this way. If you have multiple coils-test each power lead to each coil. Your module/coil setup may use a different type of system and sensor. If you have a 4 cylinder with two separate coils-look for one bad coil for 1+4 or bad power lead to that coil. vmprklr 04-21-2004, 08:39 PM [QUOTE=Three_Fingers]To test, you only need ignition on. Should be 12v. Thanks I will give it a shot. I already tried a new coil, so I will test the ign. module . Three_Fingers 04-23-2004, 09:30 PM Eh...Forgot to mention also...check the grounds (mounting plates, etc.) on that coil for any crap buildup that'd cause an open circuit or high resistance on that coil-preventing it from working right. If you find any oil/gunk/etc. clean it off all nice and shiny/dry and put some conductive heat-sink grease on the metal grounding part. It keeps the corrosion down and it can be bought at any Radio Shack or the car's dealer(conductive heat sink grease-such as used on HEI distributor ingnitor modules). Related Links Enter the largest automotive community on the planet! |