Injector replacement...would you do it?

[Alberta_ZR1]

What's your opinion?

I have the fuel rail out of my 93 (40,000km) and debating on whether or not to change the injectors while I'm here. I've got a set of re-manufactured injectors from Fuel Injector Connection sitting on the work bench beside my new fuel regulator.

All of the factory injectors have a reading between 12.8 - 13.0 ohms.

I'm thinking replace the fuel regulator, replace the o-rings on the stock injectors, and put the FIC injectors into the spare ZR-1 parts inventory.

The car ran fine last summer with no problems, so I'm hesitant on replacing the good running factory injectors....thoughts??

[tccrab]

I'm a big fan of "If it ain't broke, don't fix it".
That being said, it might delay your project a day or two, but if you do put back in your originals, consider sending them to FIC and get 'em flowed and cleaned before you put them back in.

Just my $0.02

TomC
Crabs

[Kevin]

no need to replace em

[sammy]

i agree, its the 90-92s that have the problem with todays gas

[bobbyhi]

I'm a big fan of "If it ain't broke, don't fix it".
That being said, it might delay your project a day or two, but if you do put back in your originals, consider sending them to FIC and get 'em flowed and cleaned before you put them back in.

Just my $0.02

TomC
Crabs


I have to agree with Tom on getting them cleaned and flow checked. Did that on mine and very happy with the results.

[Jagdpanzer]

Given they've been in the engine for almost 18 years now at least have them cleaned up and flow tested for peace of mind sake. The coils may still be good but the gum and deposit buildup on the tips, which normally occures after this much time and mileage, at some point will begins to have an negative effect such as harder starting, rougher idling and reduced gas mileage. Besides, you've already got the plenum off and a set of replacements standing by on the bench ready to install. Put them in and let us know how much of a difference they made.

[XfireZ51]

Given they've been in the engine for almost 18 years now at least have them cleaned up and flow tested for peace of mind sake. The coils may still be good but the gum and deposit buildup on the tips, which normally occures after this much time and mileage, at some point will begins to have an negative effect such as harder starting, rougher idling and reduced gas mileage. Besides, you've already got the plenum off and a set of replacements standing by on the bench ready to install. Put them in and let us know how much of a difference they made.


I'm w you Phil.

[VetteMed]

Another vote for change 'em. I'm probably the only person who also will recommend changing the regulator if you've got one on hand, since I had my regulator fail a week after a plenum pull. Luckily it was in my driveway, but elsewhere, it could have stranded me.

[Brillo1990]

I'm just anal I guess but I would put in the new ones and save the old ones for spares,(probably never need them) doesn't make sense (to me) to have it apart with new parts laying there and not put them in. If the old ones are good after testing then sell them to someone looking for originals. JMO of course.:mrgreen:

[mike100]

put the originals in a box and use the newer ones. They probably will idle and run just a bit smoother.

IF your car is 100 percent original still, then send them out for service and put them back in, otherwise, if you have some aftermarket bits and pieces, it won't really matter if the injectors are different too.