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Hello, just to make sure, #4 is the rear most sparkplug on the passenger side. Is this the coil you replaced? Also, do you have a test light? Thanks
yes this is the coil i replaced. i have a test light logic probe and multimeter
With the engine running, you will need to check for power and a pulsed ground signal on the coil connector for cylinder 4. I need to know if either of these signals is missing. The ign/ run wire should have 12 volts and the other terminal should have a pulsed ground signal. Let me know which you have or don't have. Thanks
i'm confused i ground one end of the testlight one wire terminal should pulse and the stay steady one test light.
Place the ground clamp onthe negative battery post and check for power with the probe on the ign/run wire. The light should stay on steady. Then put the ground clamp of the test light on the positive battery post. The place the probe on the other wire in the connector with the engine running, the light should have a constant flicker and appear dimmer than the other wire light.
the cd wire is not lighting up test light ignition light is lighting up.
sorry about the delay in time terminal is hard to access.
Ok, make sure the clamp is on the positive battery cable when making the test on the CD wire. If it was then check for the pulsing on pin 53 in the computer connector. I have enclosed a picture of the coil wiring to the computer. If htere is no pulse from the computer then the computer has failed. If it has pulse at the computer connector, then the wire is broken and will have to be traced to find the broken spot.
your going to have to tell me what conector, pin number and and were is the module located at i cannot read schimatic. thanks
is the module located under the hvac unit.
hey are you still there, please
i taket the wire i'm looking 4 is 53 dark grey and white. having hard time reading schematic.
repaired my test light, back probed 53 test light is very dim. checked at co wire at coil terminal. test light is very dim. checked test light on battery light shines bright.
is there another return wire that i can check on the pcm to see if the light shines bright to see maybe we have a bad driver in the pcm.
the pulse co wire is firing. the battery ignition wire is dead. 53 terminal at pcm is firing too. need help.
i think you went to bed please i'll try in am
i do not have a test terminal to see if sockets are spread
plugged old coil and spark plug in no spark. plugged old plug and coil into front right hole, it fired on front but not number 4.
checked number 4 and front on passinger side both were flashing the same amount, used a test spade terminal on 4 and front right side found number 4 sockets on connector spread. checked then the other night did not think about comparing it to anouther. what do you thing or a plan to replace.