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3/2/08 10:09am - Original Message: 'injectors for my 90'
eddie20875 Lifetime Member
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Lanoka Harbor, NJ - USA

Vette(s):
1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c

Joined: 12/21/2006
Posts: 828
as some of you have seen from previous posts, i have been having some problems with my 90. some of them have been from shoddy work done by the previous owners (i am the 4th).

have always shied away from working on the cars with computers but i started working on this and it has been an education. of course in earlier cars it was rather easy to diagnose a problem and even if you were a little off you could always use the excuse, "at least i know that is a new part."

not so with the computer controlled car. but from some help here and some hair pulling i have learned a lot. the biggest thing i learned was not always go for the computer parts and to troubleshoot the basic engine first and then go to the computer as most problems are usually a easy fix.

joel also pointed out that the scanners troubleshooting is the key to the scanner. i always looked at the numbers and went to the manual but had trouble diagnosing things. once i entered the troubleshooting part of scanner it explained a lot more.

anyway the whole point of this was that yesterday i went out and tackled the job of installing new injectors. as someone told me they were replaced before and after seeing some of the work done i at least know now that they are the right injectors. as i have never done this before i was kind of nervous but jumped into it anyway.

i was surprised at basically how easy it was. will go out today and finish the little i have left to do. i just want to tell some people that somethings may appear to be harder than what they actually are and not to be afraid to try and tackle some things. and most of all thanks to all who offered advice when i needed it either on my 90 or my 75.Big%20smileHugThumbs%20Up


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THE DYNAMIC DUO


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3/2/08 4:22pm - Reply: 'injectors for my 90'
dwright Gold Member
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Victor, NY - USA

Vette(s):
2004 Commemorative Edition Coupe, Auto w/HUD. 13K miles in 2015. Sold 1982 Red Coupe

Joined: 7/12/2004
Posts: 6757
Good advice Dave.
Sometimes the top of the mountain looks unreachable.
But if you put one foot in front of the other, look up once in awhile to check your course, keep plodding away, pretty soon you are at the top looking down, with a great feeling of accomplishment.
 
 


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3/2/08 11:19pm - Reply: 'injectors for my 90'
Norsky Lifetime Member
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Twin Lakes, CO - USA

Vette(s):
SOLD - "The Toy" - 1970 Convertible
SOLD - "The Beast" - 1990 ZR-1 (#682)
"BLKBRRD" - 1978 Trans Am, 400ci/285hp, 4 spd, Black w/black interior, Hurst t-tops

Joined: 1/23/2002
Posts: 6714
CONGRATS on the completed project...!!!  Clap  Thumbs%20Up  Clap  Thumbs%20Up  Clap  Thumbs%20Up  Clap
 
Coming back from California with Pete (PJK82CE) in his 'new-to-him' '82 CE we had lots of "fun" with fuel delivery problems.  Along the way we found out that one problem was leaking gaskets under the throttle bodies.  When we got back at my place we tore down the TBs, cleaned them, and replaced all the gaskets we could, put it all back together and the car started up...!!!  I'd never worked on a TBFI system before but with the manuals he'd gotten with the purchase of the car it made the job quite easy.
 
That gave me some confidence in tackling replacing all the injectors on "The Beast" before heading to CC last summer.  I was quite nervous about tearing open the top of the LT-5 but tips and support from folks on the ZR-1NetRegistry made it a successful project.  Needless to say Patty was quite relieved (me too...!!!) when it fired up perfectly for the first time after I'd gotten everything back together.


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3/3/08 12:06am - Reply: 'injectors for my 90'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19458
I myself just recently replaced the infectors on my '85. I went a little further, and removed the intake completely to do a little detail work, but it's still not that hard a job. This stuff can look/sound intimidating to a lot of folks, but the service manuals, and other resources such as C3VR can make it all so simple.
Glad you got it done!!

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Joel Adams
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3/3/08 6:47am - Reply: 'injectors for my 90'
eddie20875 Lifetime Member
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Lanoka Harbor, NJ - USA

Vette(s):
1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c

Joined: 12/21/2006
Posts: 828
jim, the tbi comes next. my 81 caddy has that and some suy screwed it up. got a rebuild kit for it yesterday and will start playing around with that. joel would have liked to have done a lot of detail work on it also while i had it apart but  at this point was more intent on getting it running right.

got it all back together yesterday and found another source of a vacuum leak. the hose going from the throttle body to the vent on the vale cover was broke and had a mile of electrical tape around it (some of the shoddy work). never saw it as it was under the wires that run along the cover. patched it for now with a brass union and clamps. have the replacement hose on order.

started it up and she purred. will have to do the fine tuning this week. thanks for all the help and support you guys give. just another point. was at another site that claim to have "experts" and every question i asked (which wasn't that many) went unanswered. whether the answers here solve the problem or not you guys at least take the time to give suggestions of things to check for. THANKS. daveThumbs%20Up


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THE DYNAMIC DUO


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