Four bad injectors?

OldBrit · Mar 2nd, 2004, 07:17 PM

I am still trying to get this S13 blacktop to run. I was busy with other things for a couple of weeks but now I am back in the garage. All four spark plugs are sparking. All four injectors click when the CAS is turned. What are the chances that all four injectors are not letting the fuel by? I have 50 PSI in the fuel rail. Why I think the injectors are not working: the plugs are not wet after much cranking. The only time the engine does run briefly is after I remove an injector and gas from the fuel rail runs into the cylinder. Then I put the injector back in, hit the starter and it runs for a few seconds. After that, I can crank it all night and no go. I have checked and rechecked the timing so many times I could do it in my sleep. Any ideas?

Joel · Mar 2nd, 2004, 08:13 PM

Wow still not working? Sounds like its time to get someone to look at it - autoelectrician or injector specialist maybe?

Are they stock injectors? They should have purple caps i believe...

OldBrit · Mar 2nd, 2004, 08:47 PM

Quote:

Originally Posted by Joel

Wow still not working? Sounds like its time to get someone to look at it - autoelectrician or injector specialist maybe?

Are they stock injectors? They should have purple caps i believe...

Yes purple caps. They look like the originals.

projectsr · Mar 3rd, 2004, 07:26 PM

Quote:

Originally Posted by OldBrit

Yes purple caps. They look like the originals.

When you looked at the injectors did you see if any of your plastic prongs have broken off?? Check all your prongs on injectors. These tend to alter your spray patterns if they are broken. Check and make sure you are getting fuel in all 4 injectors. Lift your fuel rail a bit and turn the key in the on position and see if you are getting any kind of fuel.

93blackSER · Mar 3rd, 2004, 09:28 PM

just take all the injectors out and try to crank the car over. it'll make a mess, but you'll know if they work or not

OldBrit · Mar 4th, 2004, 08:49 AM

Well, perhaps I should change from 'will not run' to 'runs briefly'. Yesterday morning before leaving for work I tried starting the engine. It ran for about 3 seconds and died. After that it just cranked and did nothing. This morning I tried it again. It ran for about 4 or 5 seconds and died. After that no amount of cranking got any results.
I have read several posts by others with a similar problem on this board and NICO forums. I realize it could be a number of things to cause this problem so I will just keep trying and looking for answers. Later on today I will call Jeff at Heavy Throttle. He may have an idea.

OldBrit · Mar 4th, 2004, 02:02 PM

As per Jeff's suggestion, I pulled the fuel rail off this afternoon. With the fuel pump on and 50 PSI in the rail no injectors were leaking or dripping any fuel. When I cranked the engine over, all injectors were pulsating a spray of fuel. Maybe I will play with the timing a little.

Joel · Mar 4th, 2004, 10:23 PM

Check your CAS isnt faulty.
It could also be the timing maps on the ecu which means wrong ecu...

Oh and check you have the coilpacks in the right order!!!