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Crank no start and only a single injector pulse

  • davidessiendcarguy
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1 year 3 weeks ago #66688 by davidessiendcarguy
Crank no start and only a single injector pulse was created by davidessiendcarguy
A 2005 Mitsubishi l200 with an inline 4 COP ignition system with an engine code of 4G64 SOHC engine installed in it was pretty okay. Thus, the client used it for some errands from the morning hours to the afternoon and it was perfectly running. Nevertheless, when the client returned  home the 3rd time, his boy reversed the vehicle within the man's compound for a wash. If I'm not mistaken though, the car stalled on him or it was about 20 minutes ago when the boss was about to move again with the car that the noticed the problem. But they said it was only a reverse  he did. 
   The car would crank, start but stall immediately within 4 seconds. I was called to rectify and fix the issue. 
  One of the things I checked when the car was cranked was the fuel system. With ignition on, the car wouldn't pump even an iota of fuel through the fuel hose to the engine. 
   Bypassing the pump directly to the battery positive and ignition switch to the on position, there's a great pressure or amount of fuel from the fuel hose. Alternatively, I unplugged and plugged back the 3 wire CKP sensor connector and noticed a great buzz of fuel too. I proceed with testing fuses and relay from the engine bay and only one fuse was bad and it was replaced. From inside the car I all relays and noticed that the CKP sensor no longer pumps fuel to the engine with the unplugged and plugged method but the bypass method and noticed the relay location that controls the CKP fuel pressure buzz on ignition to the battery positive still wasn't affected. I didn't know more to do there than swap the relay.
   Next, I checked for injector pulse and noticed only a single or no pulse at all. 
   I tried to hook up a scanner to conduct some test however, the scanner was not connecting. 
  Next, I checked and observed that the timing was pretty weak. I showed the client, he said I should replace it which I did. 
   Presently, it's a crank no start, single injector pulse no spark, no communication to my scanner. 
   Please, how can I address this issues? How can I bench test the car 3 wire CMP, CKP sensor with a multimeter or a test light or LED light outside the car? Where is the fuel pump relay location. Please send me the car wiring too. 

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1 year 3 weeks ago #66689 by Tutti57
With no communication occurring with the scan tool, that's where I would start. See if you have 60ohms between pins 6 and 14 at the dlc. Some vehicles will give you odd results if you have battery neg connected, so keep that in mind.

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1 year 3 weeks ago #66696 by Davido Essien
Replied by Davido Essien on topic Crank no start and only a single injector pulse




.
Please, what could cause that? ?

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1 year 2 weeks ago #66786 by forumoto
You are not getting enough response because it look like you are new to the trade

Christ De Way Maker

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1 year 2 weeks ago #66790 by Davido Essien
Replied by Davido Essien on topic Crank no start and only a single injector pulse
I've finally started the car. It's okay now.
The following user(s) said Thank You: Noah

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1 year 2 weeks ago #66795 by Noah
What problem did you find sir?

"Ground cannot be checked with a 10mm socket"

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11 months 4 weeks ago #66985 by Davido Essien
Replied by Davido Essien on topic Crank no start and only a single injector pulse
Sorry for the delayed response! The no communication was due to my scanner. But the car not starting was electrical issue from the engine side. I also reset the timing and it started.
The following user(s) said Thank You: Noah

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