Awesome video, sounded great idling! Actually needs a drive for relearn. Those are chunky injectors!😂 The idle made you happy for a few seconds. Thanks for the shoutout. I thought you had it, started, idled like new.
@@Amundred I've heard guys mention ground connections, like the spaghetti strands of fusible links coming off the battery. You would have to remove your battery to check those. That might help.
@@geneyus6411 I ordered a OBD1 Cable and software to monitor this on my laptop - going to see if I can find anything this way! Should be here in about a week!
I just watched your Optispark change, I am doing one on my 92, I have a 96 and a 77, I made the mistake of washing my motor and the car has not run good since. So out comes that Distributor, Fun so far... Ya Right. waiting on parts... I don't like the LT-1 I might go coil on plug or pull the damn thing out and I have a 400 cu small block 425 horse and go old school with carb and a normal Distributor. You Did it sounds Good.
The LT1 is a complete pain in the butt!!! I have looked at the Coil On Plug conversion many times! The 24x system seems like a good option! I want to get mine running correctly first and then may bite the bullet and make the swap!
You don't have to waste time disconnecting the fuel lines. Just undo the clamp and when you pull up on the rail , just lay the whole rail up toward your windshield. The white grease on the O rings, is so you don't tear them while installing.
Gene... Thanks for posting this. I just did my 93 Vette injectors and used your comment to facilitate the replacement without disconnecting the lines. Wish I had read it before ordering a fuel/trans disconnect kit, but I'll probably end up using it in the future. 👍
Exactly yes. I've done hundreds of these over the years and never disconnected the lines to do this or FPR yet. No real point in disconnecting the battery either, but some people seem to like doing that.
My 5.7 IROC IS DOING THE SAME EXACT THING. Except mine was backfiring through the exhaust. And acting all crazy. Ive changed: all plugs/wires/cap/ rotor/ EGR valve/IAC-sensor/ amongst other sensors. Oxygen sensor, and about to change my injectors.
I’m not sure where this question should be put up but I’ve been having an issue with mine. I started up. It runs great for about 10 minutes and just dies cut off. Try to restart it like it’s out of fuel. I’ve already replaced the fuel pump fuel filter, relays and throttle positioning center, any help would be appreciated
Unfortunately, it could be a few different things causing this. Without doing some diagnostics and using a meter to grab sensor data, it may be hard to get to the cause. Could be ignition control module, TPS, Opti, etc - if you have the service manual, I believe it has a diagnostics chart for this, but I sold mine with the car and do not have it to reference for you. Good luck...these cars are amazing when they are running...they are a PITA when not.
Unfortunately, no 😭 The Corvette is currently in the stage where I decide what I want to do with it...LS Swap, Big Block, Small Block...just no idea at the moment 👍
@@Amundred Damn Sorry to hear that. I have a 94 LTI that seems to vibrate misfire and bog when under load. In Neutral it's absolutely fine. I replaced the fuel filter, thinking maybe it's fuel pump or spark plugs or the fuel injectors. Any ideas?
@@DC. Plugs, wires, opti, coil... usually an ignition problem if it is only happening under load...but still a lot of different items that could be the actual problem.
@@Amundred The other guy who was having same issues, said he had to replace ICM connector He just said fired right up , which yours did too. He didn't mention when in gear. You don't hear any vacuum leaks??
Dude. I've done what you've done. Not quite. But I had my optispark replaced. I installed the accell injectors. I've replaced a bunch of vacuum lines, I've replaced the ICM. I did plugs and wires. Intake manifold gasket. The gauge cluster pulsates a bit at idle and the car misses only at idle. My car just idles like shit. Idk:( '95 C4
Oh man....I have been chasing down a hesitation/misfire issue for quite some time! The injectors were the OE injectors so I decided to go ahead and replace them as I was replacing basically everything on the car at this point! 😂
I would imagine that they will coincide with the cylinder number. So #7 would be the rear-most (closest to the back of the car) injector on the Driver's side.
I have a C4 LT1 1991 that does not start. I have changed oil,oil filter, gas filter, gas pump, spark plugs, i took out all the old (dirty) gas/ from the fuel lines and from the fuel tank. I bought a brand new batteri. The car still doesn’t start but after i changed all this the car coughs and wants to start. I even sprayed some brake cleaner in to the carburettor and that is when the car coughs and almost whant to start. Anyone know what i should do next?
Sounds like a full tune up was done basically. You could always check for spark on each of the plugs to make sure that the ignition system is working correctly. A '92 has the LT1 with the Optispark, so that could potentially be the culprit, but you would have a check engine light and a code stored for that. Maybe try pulling the codes?
Actually, I have a check engine light that came on after this..pulled the codes and it was H43 (knock sensors) so I ordered new knock sensors and will be replacing them when they arrive! Hoping to possibly drive this thing soon!!!!
I know! We are almost there!!! I did notice that there is now a check engine light and pulled the code...knock sensors (H42) are the DTC so I ordered those yesterday!
haha...yeah...but where is the fun in that? 🤣 Also, it seems like this is a pretty common issue that people with the C4 Corvettes run into...so if I am able to do this stuff and fix mine, maybe I will be able to help someone else with this same issue!
Awesome video, sounded great idling!
Actually needs a drive for relearn.
Those are chunky injectors!😂
The idle made you happy for a few seconds. Thanks for the shoutout.
I thought you had it, started, idled like new.
I wish that I COULD drive it! 😭
And you are welcome for the shout out! 🤜🤛
And yes, it sounded great while idling! I was definitely getting excited as it hasn't idled correctly since the issue started!
@@Amundred New plugs, wires, injectors gave it a shot of Adrenalin.
You're on the correct path!👍
@@Amundred I've heard guys mention ground connections, like the spaghetti strands of fusible links coming off the battery. You would have to remove your battery to check those. That might help.
@@geneyus6411 I ordered a OBD1 Cable and software to monitor this on my laptop - going to see if I can find anything this way! Should be here in about a week!
Saw your most recent video! Love that you have so many C4 Corvette tutorial videos! Going to swap my old injectors on mine soon!
@@Lmaow-bc8ym I'm glad that you found the channel and thanks for watching/commenting!
@@Amundred by any chance do you remember which flow rate those injectors were? 26lbs or 30lbs?
@@Lmaow-bc8ym 26lb 👍
@@Amundred awesome thank you!
That helped out 100% Brother
Awesome! Glad to hear!
I just watched your Optispark change, I am doing one on my 92, I have a 96 and a 77, I made the mistake of washing my motor and the car has not run good since. So out comes that Distributor, Fun so far... Ya Right. waiting on parts... I don't like the LT-1 I might go coil on plug or pull the damn thing out and I have a 400 cu small block 425 horse and go old school with carb and a normal Distributor. You Did it sounds Good.
The LT1 is a complete pain in the butt!!! I have looked at the Coil On Plug conversion many times! The 24x system seems like a good option! I want to get mine running correctly first and then may bite the bullet and make the swap!
@@Amundred You just want to upset the car Gods, don't you!😂🤣😃
@@geneyus6411 hahaha...I am just a glutton for punishment! 😂😂😂
@@Amundred I'm sure you will get plenty of miles without coil pack conversion! Save your funds for the next issue!😲
@@Amundred Can you comment on what I asked you???
If not, taking my precious Algorithms elsewhere, haha!
Thanks that was helpful. This doesn't look like a difficult job at all
It is actually very easy!
Very helpful thank you
I am glad to hear! Thanks for stopping by!
You don't have to waste time disconnecting the fuel lines.
Just undo the clamp and when you pull up on the rail , just lay the whole rail up toward your windshield. The white grease on the O rings, is so you don't tear them while installing.
Gene... Thanks for posting this. I just did my 93 Vette injectors and used your comment to facilitate the replacement without disconnecting the lines. Wish I had read it before ordering a fuel/trans disconnect kit, but I'll probably end up using it in the future. 👍
Exactly yes. I've done hundreds of these over the years and never disconnected the lines to do this or FPR yet.
No real point in disconnecting the battery either, but some people seem to like doing that.
@@79HurstOldsGuy You will definitely use the disconnect kit for replacing O RINGS, so no loss for you.
Glad I could help😎
Thanks for that tip!
@@ObscureStuff420 Glad it worked out for you 👍
My 5.7 IROC IS DOING THE SAME EXACT THING. Except mine was backfiring through the exhaust. And acting all crazy. Ive changed: all plugs/wires/cap/ rotor/ EGR valve/IAC-sensor/ amongst other sensors. Oxygen sensor, and about to change my injectors.
Did you change fuel filter before installation of new injectors?
I actually changed the fuel pump, filter and pressure regulator
I’m not sure where this question should be put up but I’ve been having an issue with mine. I started up. It runs great for about 10 minutes and just dies cut off. Try to restart it like it’s out of fuel. I’ve already replaced the fuel pump fuel filter, relays and throttle positioning center, any help would be appreciated
Unfortunately, it could be a few different things causing this. Without doing some diagnostics and using a meter to grab sensor data, it may be hard to get to the cause.
Could be ignition control module, TPS, Opti, etc - if you have the service manual, I believe it has a diagnostics chart for this, but I sold mine with the car and do not have it to reference for you.
Good luck...these cars are amazing when they are running...they are a PITA when not.
Hello sir, did you find a solution to your issue?
Unfortunately, no 😭
The Corvette is currently in the stage where I decide what I want to do with it...LS Swap, Big Block, Small Block...just no idea at the moment 👍
@@Amundred Damn
Sorry to hear that.
I have a 94 LTI that seems to vibrate misfire and bog when under load. In Neutral it's absolutely fine. I replaced the fuel filter, thinking maybe it's fuel pump or spark plugs or the fuel injectors. Any ideas?
@@DC. Plugs, wires, opti, coil... usually an ignition problem if it is only happening under load...but still a lot of different items that could be the actual problem.
@@Amundred I appreciate that! Hopefully we get back on the road soon!
Well spark plugs and wires have been replaced but my problem is still there so onto the fuel injectors
Everybody is pulling for you with knock sensor fix! A chance for another video.
I was so hopeful! I feel kind of let down.
Same! 😭
@@Amundred c'mon wth???😳
@@geneyus6411 I know! I was really hopeful here!
@@Amundred The other guy who was having same issues, said he had to replace ICM connector He just said fired right up , which yours did too. He didn't mention when in gear. You don't hear any vacuum leaks??
@@geneyus6411 I've checked and there are no vacuum leaks after replacing the Throttle Body plate gasket
Dude. I've done what you've done. Not quite. But I had my optispark replaced. I installed the accell injectors. I've replaced a bunch of vacuum lines, I've replaced the ICM. I did plugs and wires. Intake manifold gasket. The gauge cluster pulsates a bit at idle and the car misses only at idle. My car just idles like shit. Idk:( '95 C4
I am currently rebuilding the engine and will be replacing the ECU - I will hopefully fix this issue this way... hopefully 😒
@Dave Davis I haven't done that no. Just one of those things I need to do
@DaveDavis-ml5ic replaced it in one of the videos that I made 👍
Unfortunately that was not the fix for mine. 😭
What was the issue that made you change them?
Oh man....I have been chasing down a hesitation/misfire issue for quite some time! The injectors were the OE injectors so I decided to go ahead and replace them as I was replacing basically everything on the car at this point! 😂
How can you tell what number fuel injector it is …I’m looking for number 7
I would imagine that they will coincide with the cylinder number.
So #7 would be the rear-most (closest to the back of the car) injector on the Driver's side.
Don't forget to install your precious build sheet on the window😂🤣
What is the flow rate for a lt4
24 lbs/hr I believe
I have a C4 LT1 1991 that does not start. I have changed oil,oil filter, gas filter, gas pump, spark plugs, i took out all the old (dirty) gas/ from the fuel lines and from the fuel tank. I bought a brand new batteri. The car still doesn’t start but after i changed all this the car coughs and wants to start. I even sprayed some brake cleaner in to the carburettor and that is when the car coughs and almost whant to start. Anyone know what i should do next?
1992/305hp *
Sounds like a full tune up was done basically. You could always check for spark on each of the plugs to make sure that the ignition system is working correctly. A '92 has the LT1 with the Optispark, so that could potentially be the culprit, but you would have a check engine light and a code stored for that. Maybe try pulling the codes?
Anyone who does the Bosch 3 upgrade, you won't be re using those top clips at all.
why
Can you give me an idea on how much those ACCEEL fuel injectors are..?
There is a link to them in the description...but the price is approximately $400
@@Amundred ok Thanks.... they are proud of them... lol
@@mrdeanv4414 they sure are! 😂😂
Too much, they're junk. Get Bosch IIIs from FIC instead, $250 for a much better product.
I spoke to soon..... sorry it did not do the trick. Could be the CPU ???
Actually, I have a check engine light that came on after this..pulled the codes and it was H43 (knock sensors) so I ordered new knock sensors and will be replacing them when they arrive! Hoping to possibly drive this thing soon!!!!
Sòoo soo close
I know! We are almost there!!! I did notice that there is now a check engine light and pulled the code...knock sensors (H42) are the DTC so I ordered those yesterday!
Might be cheaper to get a new motor at this point
haha...yeah...but where is the fun in that? 🤣
Also, it seems like this is a pretty common issue that people with the C4 Corvettes run into...so if I am able to do this stuff and fix mine, maybe I will be able to help someone else with this same issue!
Well, there is that... 😉
New motor cheaper???
I doubt it.