SPONSORED LINKS

ONE FUEL INJECTOR LOSING PULSE SIGNAL WHEN CONNECTED, ALL INJECTORS CHECKED AND WORKING.

  • Tiny
  • 98 rodeo
  • 1998 Holden Rodeo

I have a 3.2 v6 holden Rodeo, on gas and petrol, when running on gas all is ok, when on fuel one injector is not working, have found when connecting the injector the pulse is very faint, have checked all injectors and all are good and working, please help.

SPONSORED LINKS
Do you
have the same problem?
Yes
No
Saturday, November 26th, 2011 AT 4:33 AM

7 Replies

  • Tiny
  • rivermikerat
  • Member

What's the difference between gas an petrol? To me they're the same thing. Have it scanned for codes. Check the wiring to the injectors for shorts, opens, and frays.

Was this
answer
helpful?
Yes
No
Saturday, November 26th, 2011 AT 4:46 AM
  • Tiny
  • 98 rodeo
  • Member

What I meant is LPG and petrol, have also checked all wiring to the ECM from the injectors and they all have good continuity, could it be a fault in the ECM.

SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, November 26th, 2011 AT 4:50 AM
  • Tiny
  • rivermikerat
  • Member

Yes. It could be. How does the signal to the faulty injector compare with the signal to the other injectors?

Was this
answer
helpful?
Yes
No
Saturday, November 26th, 2011 AT 5:02 AM
  • Tiny
  • 98 rodeo
  • Member

When the injector is not connected the signal is strong, from the connector, and when it is connected it is very week, I have tried this with an injector that works on the other connectors not fitted to the block on the faulty one.

Was this
answer
helpful?
Yes
No
Saturday, November 26th, 2011 AT 5:46 AM
  • Tiny
  • rivermikerat
  • Member

It sounds like the injector has an internal short to ground.

Was this
answer
helpful?
Yes
No
Saturday, November 26th, 2011 AT 7:08 AM
  • Tiny
  • 98 rodeo
  • Member

The injector operates fine on all other cylinders when connected to their plugs, its only when I connect it to cylinder 2# the pulse gets week to only that injector.

Was this
answer
helpful?
Yes
No
Saturday, November 26th, 2011 AT 7:22 AM
  • Tiny
  • mhpautos
  • Expert
  • 30,587 posts

The fault may be in the injector loom plug it self, check for loose fitting pins, I have seen this on Rodeo's before, and ensure that the plug is locking onto the injector fully.

Was this
answer
helpful?
Yes
No
Saturday, November 26th, 2011 AT 7:28 AM

Please login or register to post a reply.

Similar Questions

1997 Nissan Sentra No Fule Injector Pulse

Engine mechanical problem 1997 nissan sentra 4 cyl front wheel drive automatic 170, 00 miles my 97 nissan sentra has no fuel inje
Asked by jbb213 ·
1 ANSWER

P1610 Code Good Spark No Fuel Injector Pulse

Car came in, died while driving. No voltage to most sensors and no communication with scanner. After changing pcm and reprogram from lo
Asked by briteside ·
1 ANSWER

I Have A 1988 Bmw 535i That Has No Spark,...

Has no spark, injector pulse or fuel pump operating when trying to start the car.I have put on a secondhand crank sensor (from one that
Asked by Noel Begley ·
4 ANSWERS
1 IMAGE

Fuel Injectors Pulse Only Once

The fuel injectors on my 2002 chevy silverado hd only pulse once when I turn the engine over, no matter how long it turns over. Any id
Asked by emd014 ·
7 ANSWERS