Fuel Pressure? Fuel Injector problem?

[Willystyle56]

Ohms look okay on them but I didn't check it hot. I just got them back from an injector cleaning service and they tested good there not clogged good spray. Guess I have more tests to do.

 

[TURBO200R4]

good luck

 

[Rick Morris]

Ohms look okay on them but I didn't check it hot. I just got them back from an injector cleaning service and they tested good there not clogged good spray. Guess I have more tests to do.

In the beginning of this thread you said the injectors were all good correct? Somewhere along the line you stated that you switched up the coils and you had fire in the # 3 and not in # 1 or # 2? switched up coils and you had fire in #2 and not 1 or 3 correct? So if you moved the # 3 coil at the ECU to # 2 and it fired it would appear that you have an ECU issue, yes? Or did you move the # 3 coil out put it in # 2 and connected it to the ECU and # 2 fired? That would be a coil issue, yes? So if all the coils and injectors check out OK, it is time for a compression check. Fire, Fuel, and Air. These computerized, fuel injected creatures do add an eliminate of additional technology but by checking off a few boxes you can bring it back to a few simple deductions.

 

[TURBO200R4]

i have never done this
u could plug it in then put a hose on it into a can turn the key on so it makes the 3 (?) second fuel pump prim. and see what happen if it keeps spraying after that then the injector is bad

 

[Willystyle56]

I think coils are fine. Whichever coil was hooked to number 3 fired. Moving the injector from 3 to 2 changed the firing cylinder to number 2. The suspect injectors dont appear to leak and ohm test fine but I still think they're the problem somehow. With all injectors unplugged, shot of carb cleaner down throttle body #1 fired that cylinder, repeated test with 3 and that cylinder fired. Looks like bad injectors to me...

 

[Mittzy]

Also worth concideration is the high tension leads as they are part of the upgrade kit are they not? Just by moving these around to different plugs might be making the lead work intermitantly - just a thought.
Also there was a guy on here recently that had a similar problem being bought a bike that had been sitting for some years. He went through all the injector cleaning and tps and eventually replaced ALL the rubber fuel line and that fixed it.

 

[Mark Dunn]

It's likely worth checking the crank position sensor, too.

Mark.

 

[Willystyle56]

Thanks for the suggestions. I've done a lot of reading on here so I do already have completely new fuel lines and a clean cps. I did try switching the high tension leads around while troubleshooting the coils but it had no effect. The only thing I did that changed anything was move the injector.

 

[Pedro]

I had No 1 cylinder fail to fire ,replaced plugs . did all the checks. cleaned the CPS .no luck ,I replaced my CPS and it as run perfect every since and that was maybe 6-7 years back

 

[Willystyle56]

I had No 1 cylinder fail to fire ,replaced plugs . did all the checks. cleaned the CPS .no luck ,I replaced my CPS and it as run perfect every since and that was maybe 6-7 years back

Were you getting spark at that cylinder?