Crank but no starting

Tiny
TSHEPISO
  • MEMBER
  • 1998 OPEL CORSA
  • 1.4L
  • 4 CYL
  • FWD
  • MANUAL
  • 219,000 MILES
Engine is cranking, but not starting When removing the fuel rail with injectors and cranking it no flow or split of fuel on injectors and crankshaft sensor replaced what can be the cause?
Do you
have the same problem?
Yes
No
Wednesday, March 9th, 2016 AT 2:48 AM

3 Replies

Tiny
WRENCHTECH
  • EXPERT
You may have already done some of this, but finish what hasn't been done.

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can only be tested during the failure any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.

Every engine requires spark, fuel and compression to run. That's what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.

2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.

3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.
Was this
answer
helpful?
Yes
No
+1
Wednesday, March 9th, 2016 AT 9:07 AM
Tiny
TSHEPISO
  • MEMBER
Thanks a lot guys, but still it doesn't open up the injectors, I tested one of the two wires on every injector and it tested okay, it seems as if the ground wire which is controlled by ECM doesn't do its work. What must I do now because my spark plugs and petrol pump as well as positive wire in every injectors are okay.
Was this
answer
helpful?
Yes
No
Tuesday, March 15th, 2016 AT 4:11 AM
Tiny
WRENCHTECH
  • EXPERT
Each injector receives constant power one one wire and the other wire goes to the computer which controls the injector pule pulsing the ground side. This is why I advised you to use a noid light to test for injector pulse. Any other method could damage the computer, so don't do any experimenting. Noid lights are very inexpensive.

https://www.2carpros.com/images/external/1Noidlightpair__.jpg
Was this
answer
helpful?
Yes
No
Wednesday, March 16th, 2016 AT 5:14 PM

Please login or register to post a reply.

Recommended Guides