cats poping gas!!!
Thread Starter
Heel & Toe
Joined: Mar 2010
Posts: 18
Likes: 0
From: Miami FL
cats poping gas!!!
Hello there..
I a have a situation with my LT1 94 vette. I start the car and it hesites and cranks on... but when i put it on drive, its starts to run rough and sounds like it only has 7 cyl. I tough it could be my injectors going bad. I have one injector cable that one of the cables on a pair, went bad and I had to cut it and splice it again, could this be the problem or are maybe I just have a bad injector.
I tried to test them the way that THE INJECTOR CONNECTION mentioned but my tester only has ohms up to 1000h not 2000h like they said , All injectors checked out at 13 exempt 2 of them that checked out 13 and a second later goes down to 12.. Please help.... I already changed all the spark plugs and it still runs rough.
thanks for anything that you guys can trow my way.
I a have a situation with my LT1 94 vette. I start the car and it hesites and cranks on... but when i put it on drive, its starts to run rough and sounds like it only has 7 cyl. I tough it could be my injectors going bad. I have one injector cable that one of the cables on a pair, went bad and I had to cut it and splice it again, could this be the problem or are maybe I just have a bad injector.
I tried to test them the way that THE INJECTOR CONNECTION mentioned but my tester only has ohms up to 1000h not 2000h like they said , All injectors checked out at 13 exempt 2 of them that checked out 13 and a second later goes down to 12.. Please help.... I already changed all the spark plugs and it still runs rough.
thanks for anything that you guys can trow my way.
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
When the injector resistance goes down while you hold the tester on the contacts, all you are doing is heating up the coil in the injector and the wire in the injector coil drops a ohm or two.
Nothing to worry about.
Your tester has ohm positions of 1, 10, 100, 1000. That means that each scale reads whatever is on the face of the meter X 1, or 10, or 100, or 1000.
Say you're on the 10 ohm position and your meter reads 12. That's 12X10. that equals 120 ohms.
so if you are on the 1 ohm, and it reads 12, it's 12, but on the 1000 scale, your meter needle wouldn't hardle move.
same diff if digital.
Nothing to worry about.
Your tester has ohm positions of 1, 10, 100, 1000. That means that each scale reads whatever is on the face of the meter X 1, or 10, or 100, or 1000.
Say you're on the 10 ohm position and your meter reads 12. That's 12X10. that equals 120 ohms.
so if you are on the 1 ohm, and it reads 12, it's 12, but on the 1000 scale, your meter needle wouldn't hardle move.
same diff if digital.
Race Director
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
Did the problem start RIGHT after fixing the injector harness? Are you sure your injectors are plugged in correctly (and to the correct cylinder)?
IIRC, LT1s are sequential fire.
IIRC, LT1s are sequential fire.
Thread Starter
Heel & Toe
Joined: Mar 2010
Posts: 18
Likes: 0
From: Miami FL
ok.
I would like to make correction on my last post... I double checked my FLUKE T5-600 and it seems to me like its too industrial to test injectors... it would only set at 1k , but the injctor conection said to test at 2k , so Am i missing something here?
Please advice and correct me if am doing something wrong . I tested at 1k and it gave me 13 and 12 in all injectors... HELP!!!
I would like to make correction on my last post... I double checked my FLUKE T5-600 and it seems to me like its too industrial to test injectors... it would only set at 1k , but the injctor conection said to test at 2k , so Am i missing something here?
Please advice and correct me if am doing something wrong . I tested at 1k and it gave me 13 and 12 in all injectors... HELP!!!
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
12 and 13 is not bad. is there a 1 OHM scale. What you are looking for is one or two that don't read like the rest.
That doesn't mean they are good when the engine is warmed up. get it up to 200 degrees, and check them then.
That doesn't mean they are good when the engine is warmed up. get it up to 200 degrees, and check them then.
Melting Slicks
Joined: Jun 2004
Posts: 3,253
Likes: 2
From: Castro Valley CA
While you have your Fluke handy, follow the troubleshooting routine on this thread:http://www.camaroz28.com/forums/showthread.php?t=601565
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski