were they RC eng cleaned injectors?

 

Yes. I had issues as well.

 

so, secondaries are the problem then?

 

Unfortunately, there is no silver bullet with this type of problem. IMO, I would fix things as they come up. You have run into a couple things which spec out differently than what the manual suggest. I would start by replacing/fixing those until they are within spec and the keep moving through the issues if the problem continues.

 

the only thing that hasn't been within spec has been the fuel pump resistor (supposed to be 0.5 - 0.7) and I was showing 0.9. Of course, that could be on account that the voltmeter is not as accurate as it should be like a flukemeter

 

Well, that and you know you are getting low voltage to your fuel pump. I would work on fixing or verifying those two things before moving further.

 

I'll refer you to my earlier post

 

But from what I have read, 9.5 volts under idle and light acceleration is Normal...that is what I had. I did comment that I would like to get it higher than that, however, that is a normal range, correct? Rich, I got ya on your post. I missed it...

 

You can (and should) check your fuel pressure. If it's dropping off, then most likely its a problem with your fuel pump/system (either low voltage or other issues).

 

I think you should check your injectors.

 

may sound dumb....i assume this issue I am having will occur if the injectors were swapped around (if I had prim in the second location)?

 

LOL

Never experienced it but I'd be surprised you could even get it to idle.

Secondaries are red.

 

LoL...just a thought....when you have a problem for so long, you start to second guess everything you have done as if you balled it all up. It idles nice, so i don't believe it is an injector issue from that standpoint.

Trev

 

I don't believe you could get the primaries into the secondary rail and get the cap screwed down properly.

 

That is comforting to know I just can't believe that RC would use a solution that can create issues when they aren't installed immediately. I have a buddy that has had about 4 sets from them without any issues....I will be hooking a PFC and datalogit up to the car this weekend just to check out some voltages and make sure everything is correct there. I won't be starting it with the PFC though. I will be checking fuel pressure as well. I will post an update to the ongoing saga

 

just an update: tonight I should be plugging in the PFC and using the laptop and datalogit just to make sure nothing looks out of whack. Not going to drive the car on it.

Trev

 

The issue with the RC injectors is a verified fact. It's not just RC, it happens with any company that cleans and flow tests the injs. At the shop Ihor and I verify that each injector cycles before installing them.

 

This is correct

 

fuel pump? pressure? swap injectors? fuel filter? Relay?

 

Fuel pump - showing 9.5 volts at idle
Pressure - yet to check
Injectors - we new/flowtested cleaned 10 miles ago...haven't rechecked yet.
Fuel filter - New 200 miles ago
Relay - checks out...both do...the fuel pump and circuit relays

 

Alrighty....so, tonight....my buddy comes over, we connect a PFC and datalogit to the car. Everything as far as sensors were in spec. The one thing we noticed is that the E/L was ON even though there weren't any loads (ie lights, defrost...nothing) Anyways, we started it up on the PFC. It warmed up and idled good...little lopey, but good idle. The issue was lying in the fact that when we were under the hood and revving the throttle, there is a dead spot or cut out between when we push the throttle down and when it actually revs. it is choking basically. So, I am suggesting Vacuum leak or Fuel issue....anyone agree? I am fearing that the lower intake manifold gasket is to blame (it's brand new, just fear it because it is the most work to get at) I am going to test a few options with fuel first like bypass the fuel pump resistor solenoid (the last one on the rack towards the firewall)

 

Any thoughts on the cutout I am having right after I attempt to rev the motor from under the hood?

 

Still hard to draw any conclusions without knowing results of a fuel pressure test. It still could possibly an injector issue. When I originally had mine cleaned, they sat for almost a year before they were installed and used. While they didn't leak during my pressure test, the car didn't idle all that well and was not really drivable.

 

FYI, this happenned to me. I had to pulse the injectors with 12-VDC about 50-80 times to free them.

I did this from the ECU connector so I didn't have to pull the injectors and all the associated labor.

I also used a motor stethescope to listen for the pulses on each injector.

:-) neil

 

mine only sat for about 2 weeks before they were running. I will keep you all updated.