90 Fuel injector Issues
Thread Starter
Cruising
Joined: Jul 2011
Posts: 13
Likes: 0
90 Fuel injector Issues
ok newbie here..and i am banging my head against the wall.
Last year Year i had a rough idle and no power, took it to a local who determined it was a few injectors going bad. Replaced them and all was well...
Stored for the winter....Just took it out a few weeks ago and,,,guees what???
Same problem...no power above 45 mph or 3k RPm's..
I have the flashing SYS light issue
Call a Regional Corvette Specialist t see if he could narrow it down, he tell me righ off the bat it is the injectors, and i should have replaced them all...( now i find out)
Says approx $1500 parts and labor to complete..
I have done plenty of mechnical things before, so my question for the group is...Do i attempt it, if so how complacated is it?
or do i start somewhere else? I see alot of talk about codes, will a bad injector throw a code?
Last year Year i had a rough idle and no power, took it to a local who determined it was a few injectors going bad. Replaced them and all was well...
Stored for the winter....Just took it out a few weeks ago and,,,guees what???
Same problem...no power above 45 mph or 3k RPm's..
I have the flashing SYS light issue
Call a Regional Corvette Specialist t see if he could narrow it down, he tell me righ off the bat it is the injectors, and i should have replaced them all...( now i find out)
Says approx $1500 parts and labor to complete..
I have done plenty of mechnical things before, so my question for the group is...Do i attempt it, if so how complacated is it?
or do i start somewhere else? I see alot of talk about codes, will a bad injector throw a code?
Burning Brakes
Joined: May 2011
Posts: 838
Likes: 2
From: Louisville Ky
ok newbie here..and i am banging my head against the wall.
Last year Year i had a rough idle and no power, took it to a local who determined it was a few injectors going bad. Replaced them and all was well...
Stored for the winter....Just took it out a few weeks ago and,,,guees what???
Same problem...no power above 45 mph or 3k RPm's..
I have the flashing SYS light issue
Call a Regional Corvette Specialist t see if he could narrow it down, he tell me righ off the bat it is the injectors, and i should have replaced them all...( now i find out)
Says approx $1500 parts and labor to complete..
I have done plenty of mechnical things before, so my question for the group is...Do i attempt it, if so how complacated is it?
or do i start somewhere else? I see alot of talk about codes, will a bad injector throw a code?
Last year Year i had a rough idle and no power, took it to a local who determined it was a few injectors going bad. Replaced them and all was well...
Stored for the winter....Just took it out a few weeks ago and,,,guees what???
Same problem...no power above 45 mph or 3k RPm's..
I have the flashing SYS light issue
Call a Regional Corvette Specialist t see if he could narrow it down, he tell me righ off the bat it is the injectors, and i should have replaced them all...( now i find out)
Says approx $1500 parts and labor to complete..
I have done plenty of mechnical things before, so my question for the group is...Do i attempt it, if so how complacated is it?
or do i start somewhere else? I see alot of talk about codes, will a bad injector throw a code?
joking. it is time consuming, 5-8 hrs, depending.
just did mine last week, no issues. lots of info here on procedures, several a week.
Instructor
Joined: Feb 2001
Posts: 117
Likes: 1
From: Acworth Ga
Don't mess with factory or dealer installs. Get a new set, that will be balanced from FIC. Check out the sticky thread about injectors to learn more. Replacement is a simple task even for the novice mechanic. Just take your time and you'll be OK. Besides you will save the bigger part of the $1500 estimate going this way.
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
Www.corvetteinjectors.com
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Thread Starter
Cruising
Joined: Jul 2011
Posts: 13
Likes: 0
so this problem went from bad to worse tonight...i took it for a short ride...all was normal for the first 5 min..they started to get progressivly worse...till the point that it was so rough and when i gave it a tad of gas it stumbled..could not get over 5 mph...had to call a flatbed to get it back to my garage.
a few questions before i call Jon in the am..
When checking the ohms on the injectors what is the process?
Key on or off?
What should i be looking at for a reading? I assume i touch each end of the meter to each ear on the injector? do i disconnect the harness on the injector or keep it hooked up.
argh.....
a few questions before i call Jon in the am..
When checking the ohms on the injectors what is the process?
Key on or off?
What should i be looking at for a reading? I assume i touch each end of the meter to each ear on the injector? do i disconnect the harness on the injector or keep it hooked up.
argh.....
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Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
so this problem went from bad to worse tonight...i took it for a short ride...all was normal for the first 5 min..they started to get progressivly worse...till the point that it was so rough and when i gave it a tad of gas it stumbled..could not get over 5 mph...had to call a flatbed to get it back to my garage.
a few questions before i call Jon in the am..
When checking the ohms on the injectors what is the process?
Key on or off?
What should i be looking at for a reading? I assume i touch each end of the meter to each ear on the injector? do i disconnect the harness on the injector or keep it hooked up.
argh.....
a few questions before i call Jon in the am..
When checking the ohms on the injectors what is the process?
Key on or off?
What should i be looking at for a reading? I assume i touch each end of the meter to each ear on the injector? do i disconnect the harness on the injector or keep it hooked up.
argh.....
http://forums.corvetteforum.com/c4-t...questions.html
Intermediate
Joined: Feb 2011
Posts: 47
Likes: 0
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
QUOTE=JustCruzin;1578120731]Ohming out an injector is not going to tell you the whole story, get them up on a bench. IMO[/QUOTE]
however if you ohm check them and they are out of spec. IE: 8ohms. The story is over. and there is no need to waste time shipping them out to be tested as an injector with 10 ohm coils is shot.
however if you ohm check them and they are out of spec. IE: 8ohms. The story is over. and there is no need to waste time shipping them out to be tested as an injector with 10 ohm coils is shot.
Intermediate
Joined: Feb 2011
Posts: 47
Likes: 0
however if you ohm check them and they are out of spec. IE: 8ohms. The story is over. and there is no need to waste time shipping them out to be tested as an injector with 10 ohm coils is shot.[/QUOTE] So true, you guys do a great job 
Thread Starter
Cruising
Joined: Jul 2011
Posts: 13
Likes: 0
Ok i just wanted to post the update on this one...ordered a set of bosch III's from john..had them in my mailbox 3 days later...7 hrs of labor and one cold beer afterward and it runs beter than the day we brought it home 15 yrs ago....
A heartfelt thanks goes out to the john and his team for the advice and knowledge...i did make a few phone calls during the process and they were awesome...
A heartfelt thanks goes out to the john and his team for the advice and knowledge...i did make a few phone calls during the process and they were awesome...