Cold Start Injector,Can I remove or unplug it?

[SGT.ROCK]

I had my injectors out to see if they were leaking, and and they checked out ok.I had no codes before I removed them.Now if my cold start injector is bad, can I remove it or unplug it,or should I buy another one.I'm trying to figure out why my car is running rich and drinking fuel.This post is a continuance of my "Can I remove my PCV valve."

[p8ntman442]

you can plug the injector at the rail where it gets fuel from, and then just leave it there.

[Chris-Nelson]

I have a cap on my CSI fuel rail port because I will be using that to fuel my wet nitrous system.

I had my lower intake manifold then welded shut where the CSI goes to make it look nicer. I'll post some pictures later.

[SGT.ROCK]

What can I lube my injectors with to make it easy to get them back in the holes? K Y Jelly? JK! :la:

[p8ntman442]

soap.

[Series8217]

motor oil

[The Dark Side of Will]

I had my injectors out to see if they were leaking, and and they checked out ok.I had no codes before I removed them.Now if my cold start injector is bad, can I remove it or unplug it,or should I buy another one.I'm trying to figure out why my car is running rich and drinking fuel.This post is a continuance of my "Can I remove my PCV valve."

Have you checked the electrical signal to the CSI? IE, have you discounted your temperature switch as the problem? You could also accomplish this by unplugging the electrical connector from the CSI and leaving it.

Does your car have any exhaust leaks? Exhaust leaks at the manifold can introduce air into the exhaust stream and fool the ECM into thinking that the exhaust has excess oxygen, to which the ECM responds by richening the mixture.

Does your car have any other symptoms like popping or backfiring on coast down?

[SGT.ROCK]

I had my injectors out to see if they were leaking, and and they checked out ok.I had no codes before I removed them.Now if my cold start injector is bad, can I remove it or unplug it,or should I buy another one.I'm trying to figure out why my car is running rich and drinking fuel.This post is a continuance of my "Can I remove my PCV valve."

Have you checked the electrical signal to the CSI? IE, have you discounted your temperature switch as the problem? You could also accomplish this by unplugging the electrical connector from the CSI and leaving it.

Does your car have any exhaust leaks? Exhaust leaks at the manifold can introduce air into the exhaust stream and fool the ECM into thinking that the exhaust has excess oxygen, to which the ECM responds by richening the mixture.

Does your car have any other symptoms like popping or backfiring on coast down?

I dont know how to check electrical signals. Should I just replace my temperature switch? I had a leak at the donut part of the manifold towards the back window.,but I fixed it. I dont think my temperature switch is hooked up come to think of it.Because I dont know if it has anything to do with making the cooling fan kick on or not because whoever had this car before me wired the cooling fan to come on when you turn the ignition to "RUN"!

[Honest Don]

What can I lube my injectors with to make it easy to get them back in the holes? K Y Jelly? JK! :la:

I've had good luck with vasaline

[SGT.ROCK]

Well I got my injectors in and got everything back together and finally got it to run.Now it idles fine doesnt really smell like its running rich and there is no engine codes,but when I go to rev the engine at the throttle body with the breather or air filter off it pops through the intake.What causes that? Timing? My Dad and I just put and new distributor in.Like I said it seems to idle great and I can slowly rev it and it sounds good.Just when I try to snap the throttle real fast it bogs and pops through the throttle body.I also sprayed the lower intake ports with alot of carb/throttle body cleaner awhile back but I would have thought it would have evaporated by now.Any ideas? :scratch: And as always thanks.

[Honest Don]

Well I got my injectors in and got everything back together and finally got it to run.Now it idles fine doesnt really smell like its running rich and there is no engine codes,but when I go to rev the engine at the throttle body with the breather or air filter off it pops through the intake.What causes that? Timing? My Dad and I just put and new distributor in.Like I said it seems to idle great and I can slowly rev it and it sounds good.Just when I try to snap the throttle real fast it bogs and pops through the throttle body.I also sprayed the lower intake ports with alot of carb/throttle body cleaner awhile back but I would have thought it would have evaporated by now.Any ideas? :scratch: And as always thanks.

check your timing :thumbleft:

[Series8217]

Check timing as well as the spark plug wire order. The firing order is 1-2-3-4-5-6.

[Chris-Nelson]

This is what I did with mine:









I plan on using the CSI port on the fuel rail to be the supply for a wet nitrous system and I just had the manifold welded shut.