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Old 10-31-2013   #1
csavaglio
 
Join Date: Oct 2013
Location: Colorado Springs, CO
Posts: 160
Default Injector Question

On my new to me 47k mile 1991, I took note of the injectors. Well, at least the one that was easy to see. On the top, it was etched 5235357. Looking at it, it looks like the stock injector, but there was a red o-ring on the lower groove. From what I've seen of photos, the original ones didn't have anything there. I didn't check the PN on all of them since they're not accessible.

Should I be budgeting for injectors soon and mentally prepping myself for a plenum removal, or are these rebuilds/newer ones?

The car's not exhibiting any of the symptoms of shorted or leaking injectors.....it's pretty smooth when cold and hot. I drove it quite a bit this last weekend......between running around town, a trip to work, and driving it back from CO, I put about 700 miles on it including the 600 mile trip back. Even toward the end of the long trip, it was dead smooth starting up and pulling away from rest stops.

According to the Carfax, the car had 19k on it in 1994 and the rest of the mileage was pretty evenly spread out until about 2010 when only a thousand or so was put on since. It passed CO emissions up until it was no longer required.

I would think after around 30k miles of alcohol'ed gas running through it, if the injectors were going to act up, they would've already.

Chris
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Old 10-31-2013   #2
Bearly Flying
 
Join Date: Dec 2012
Location: Ponoka, Alberta, Canada
Posts: 158
Default Re: Injector Question

Welcome to the forum Chris.

If it's running fine, enjoy.

If there comes a time when work is required there is a ton of knowledge on the forum and great people.
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Old 10-31-2013   #3
We Gone
 
Join Date: Apr 2004
Location: Atlanta, GA
Posts: 2,170
Default Re: Injector Question

Congrats and Welcome. I would say if its not broke don't fix it.. I ran my stock injectors to 53K miles they are getting changed as part of an upgrade package. When the time comes to change them its not a big deal to do.
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Steve

1990 Steel Blue/Black #2355
1990 Red/Red #1473
1991 Quasar /Black #118 Sold
1991 Turquoise/Black #766 Parted Out
1993 Yellow/White #179 Sold
1990 Black/Gray #1361 Headers/4:10s Sold
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Old 10-31-2013   #4
csavaglio
 
Join Date: Oct 2013
Location: Colorado Springs, CO
Posts: 160
Default Re: Injector Question

Thanks, guys. I wasn't going to mess with them unless they started showing symptoms. I don't think they're originals because of the extra O-ring, but I don't know if they're OEM replacements that aren't good with the new gas.
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Old 10-31-2013   #5
Schrade
 
Join Date: Dec 2012
Location: NC
Posts: 1,783
Default Re: Injector Question

Welcome onto the boards there...
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