Time for injector change? - ZR-1 Net Registry Forums

5bear4 · 01-08-2011

I have a 91 zr1 with 35,400 miles that runs great. I believe it still has the original injectors. Should I change the injectors now to avoid any possible problems or wait until I see a sign of a problem? Also what brand is best Accel,Bosch etc. Also how big of a project is this to do my self.

bldavis11 · 01-08-2011

I always ask myself, "What exactly am I fixing?"

If it doesn't need repair, I don't think you are there yet.

todesengel · 01-08-2011

Well, I always believe in preventative maintenance. If you can afford to do it, and are willing to undergo the learning curve of doing it yourself, why not? To me the wait until it needs it philosophy is a flawed one, as things always fail at the worst possible time.

There are so many pictures, and how to's about this on the forums here I would think anyone with even the slightest bit of mechanical ability would be able to do this.

Other input may be more helpful for you, as I am the guy who changes his tires before they get to the wear bars, and pre orders parts well before they are needed.

FU · 01-08-2011

The car IS going to need the new style injectors sooner or a little later. Either way the injectors need to be replaced. Advise is to avoid a possible lean condition and some other problems that go with the territory. And do it now or in the near future. While your under the plenum do some of the regular maintenance. Then sit back and enjoy.

I like FIC injectors , Accel and Bosch are fine also.

ScottZ95ZR1 · 01-08-2011

It's very possible that although your car seems to run "great" those OEM injectors have already taken a hit.
If you change them out you might find "great" had another level.

And if you notice no difference you can still feel better knowing you won't have to limp home this spring
on less than 8 cylinders because those MULTECS finally crapped out - and sooner or later they will.

ScottZ95ZR1 · 01-08-2011

Yeah, and what Frank said!

Jon at FIC will treat you right. http://www.fuelinjectorconnection.co...ewCat&catId=68

A26B · 01-08-2011

Quote:

Originally Posted by FU2

The car IS going to need the new style injectors sooner or a little later. Either way the injectors need to be replaced. Advise is to avoid a possible lean condition and some other problems that go with the territory. And do it now or in the near future. While your under the plenum do some of the regular maintenance. Then sit back and enjoy.

I like FIC injectors , Accel and Bosch are fine also.

I'm with Frank!

Jon at FIC gives customers outstanding service & support.

ZZZZZR1 · 01-08-2011

Quote:

Originally Posted by FU2

The car IS going to need the new style injectors sooner or a little later. Either way the injectors need to be replaced. Advise is to avoid a possible lean condition and some other problems that go with the territory. And do it now or in the near future. While your under the plenum do some of the regular maintenance. Then sit back and enjoy.

I like FIC injectors , Accel and Bosch are fine also.

I agree with Frank. Your injectors are destined to fail, guaranteed!

If you do decide you want to replace the injectors, I would replace the coil packs too (they are failing regularly as well and inexpensive to replace).

There are many Z brother in your area and I'm sure would be interested in helping / watching you change out your injectors. If so, let me know and I'll ask around!

David

ZZZZZR1 · 01-08-2011

Quote:

Originally Posted by A26B

I'm with Frank!

Jon at FIC gives customers outstanding service & support.

Get with Jerry for your gasket needs. VERY inexpensive and helpful with any repair needed.

David

5bear4 · 01-08-2011

Thanx guys thats about what I figured. I also would rather be proactive. As as being mechanically inclined i am an HVAC technician by trade so I would say I am pretty mechanical. i already own the 91 corvette shop manuals from GM as well as the LT5 and electrical inserts. Doesnt Mark Haibeck sell videos on his web site about how to take on this task.

01-08-2011	#1
5bear4 Join Date: Apr 2008 Location: RI Posts: 12	Time for injector change? I have a 91 zr1 with 35,400 miles that runs great. I believe it still has the original injectors. Should I change the injectors now to avoid any possible problems or wait until I see a sign of a problem? Also what brand is best Accel,Bosch etc. Also how big of a project is this to do my self.

01-08-2011	#2
bldavis11 Join Date: Mar 2006 Location: Portsmouth, VA Posts: 245	Re: Time for injector change? I always ask myself, "What exactly am I fixing?" If it doesn't need repair, I don't think you are there yet.

01-08-2011	#3
todesengel Join Date: Apr 2010 Location: O'Fallon, Mo Posts: 733	Re: Time for injector change? Well, I always believe in preventative maintenance. If you can afford to do it, and are willing to undergo the learning curve of doing it yourself, why not? To me the wait until it needs it philosophy is a flawed one, as things always fail at the worst possible time. There are so many pictures, and how to's about this on the forums here I would think anyone with even the slightest bit of mechanical ability would be able to do this. Other input may be more helpful for you, as I am the guy who changes his tires before they get to the wear bars, and pre orders parts well before they are needed.

01-08-2011	#4
FU Join Date: Mar 2004 Location: Found Member Posts: 4,327	Re: Time for injector change? The car IS going to need the new style injectors sooner or a little later. Either way the injectors need to be replaced. Advise is to avoid a possible lean condition and some other problems that go with the territory. And do it now or in the near future. While your under the plenum do some of the regular maintenance. Then sit back and enjoy. I like FIC injectors , Accel and Bosch are fine also. Last edited by FU; 01-08-2011 at 12:59 PM.

01-08-2011	#5
ScottZ95ZR1 Join Date: Mar 2008 Location: Pendleton, IN Posts: 672	Re: Time for injector change? It's very possible that although your car seems to run "great" those OEM injectors have already taken a hit. If you change them out you might find "great" had another level. And if you notice no difference you can still feel better knowing you won't have to limp home this spring on less than 8 cylinders because those MULTECS finally crapped out - and sooner or later they will.

01-08-2011	#6
ScottZ95ZR1 Join Date: Mar 2008 Location: Pendleton, IN Posts: 672	Re: Time for injector change? Yeah, and what Frank said! Jon at FIC will treat you right. http://www.fuelinjectorconnection.co...ewCat&catId=68

01-08-2011	#10
5bear4 Join Date: Apr 2008 Location: RI Posts: 12	Re: Time for injector change? Thanx guys thats about what I figured. I also would rather be proactive. As as being mechanically inclined i am an HVAC technician by trade so I would say I am pretty mechanical. i already own the 91 corvette shop manuals from GM as well as the LT5 and electrical inserts. Doesnt Mark Haibeck sell videos on his web site about how to take on this task.