Completely lost...
Thread Starter
Intermediate
Joined: Mar 2018
Posts: 48
Likes: 2
Racer
Joined: Dec 2011
Posts: 323
Likes: 8
You have to check multiple things. Firstly, did you rebuild the engine yourself? Are you experienced with this type of work? Did everything go back together correctly? Have you done a compression test on each cylinder? Have you checked fuel pressure at the Schrader valve with a correct fuel pressure gauge? Have you checked that the wiring is connected correctly and that there are no breaks, kinks, or pinched wires anywhere?
Why are you jumping the VATS? Have you checked for any stored codes?
Your fuel pressure is regulated also by an oil pressure sending unit if I’m not mistaken.
Good luck. You’ll soon find your problem and be on the road in no time!
Why are you jumping the VATS? Have you checked for any stored codes?
Your fuel pressure is regulated also by an oil pressure sending unit if I’m not mistaken.
Good luck. You’ll soon find your problem and be on the road in no time!
Race Director
Joined: Apr 2003
Posts: 17,695
Likes: 1,666
From: moraga ca
You’ve got spark and fuel pressure but no injector pulse. Either the ecu is not getting the correct information to cause the injectors to fire or the information is not being picked up by the injectors. Make sure all the connectors to the distributor are connected and in all the way and that the injector harness by the firewall is connected.
Thread Starter
Intermediate
Joined: Mar 2018
Posts: 48
Likes: 2
You have to check multiple things. Firstly, did you rebuild the engine yourself? Are you experienced with this type of work? Did everything go back together correctly? Have you done a compression test on each cylinder? Have you checked fuel pressure at the Schrader valve with a correct fuel pressure gauge? Have you checked that the wiring is connected correctly and that there are no breaks, kinks, or pinched wires anywhere?
Why are you jumping the VATS? Have you checked for any stored codes?
Your fuel pressure is regulated also by an oil pressure sending unit if I’m not mistaken.
Good luck. You’ll soon find your problem and be on the road in no time!
Why are you jumping the VATS? Have you checked for any stored codes?
Your fuel pressure is regulated also by an oil pressure sending unit if I’m not mistaken.
Good luck. You’ll soon find your problem and be on the road in no time!
Thread Starter
Intermediate
Joined: Mar 2018
Posts: 48
Likes: 2
So I’ve checked the codes. I have 0 indicated by flash(pause) flash flash (long pause) and repeat. I’ve traced my wires and from what I can tell, I have no frays, no cuts, and no pinched wires. I did notice that the oil sending unit is fairly loose (I could move it by hand) it is in such a tough spot that it looks like I’m going to have to remove the plenum and try and get it a little tighter.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
2027 Corvette vs The World: Every Model vs Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
Safety Car
Joined: Sep 2001
Posts: 4,134
Likes: 531
From: Glenbeulah Wi
So I’ve checked the codes. I have 0 indicated by flash(pause) flash flash (long pause) and repeat. I’ve traced my wires and from what I can tell, I have no frays, no cuts, and no pinched wires. I did notice that the oil sending unit is fairly loose (I could move it by hand) it is in such a tough spot that it looks like I’m going to have to remove the plenum and try and get it a little tighter.
Team Owner
Joined: Sep 2003
Posts: 25,331
Likes: 2,722
4 wire is to the distributor - wire colors are likely WHITE, PPL/WHT, TAN/BLK and BLK/RED.
Do you have the FSM for this car?
What color is the single Weather-Pack wire? What color is the loose wire with the female spade. I ain't an L98 guy.
Do you have the FSM for this car?
What color is the single Weather-Pack wire? What color is the loose wire with the female spade. I ain't an L98 guy.
Last edited by WVZR-1; Apr 6, 2018 at 08:46 PM.
Thread Starter
Intermediate
Joined: Mar 2018
Posts: 48
Likes: 2
Team Owner
Joined: Sep 2003
Posts: 25,331
Likes: 2,722
The 4 wire is what I ID'd for you...........................OR I don't understand your clarification. There should be a 4 wire short harness coming from the distributor that mates to the 4 wire in your snapshot.
Last edited by WVZR-1; Apr 6, 2018 at 08:53 PM.
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
I think I see a larger pink wire burried down there. That might be the power wire to the dist. Won't run without that!! There should also be a white wire for the tach. Those two wires plug into the bottom of that lump on the side of your dist.
Do I see exposed threads on that manifold bolt? I hope not!
Do I see exposed threads on that manifold bolt? I hope not!
Thread Starter
Intermediate
Joined: Mar 2018
Posts: 48
Likes: 2
Team Owner
Joined: Sep 2003
Posts: 25,331
Likes: 2,722
And I asked you a few posts ago what the wire colors are. What are they? I believe I understand them but you could certainly clarify. I believe the Weather-Pack is likely EGR Diagnostic Temp switch. Is wire maybe DK GREEN? If the other wire is actually WHITE it could be the tach filter wire to distributor but I would have expected a different female for the spade. The actual connector shell is missing also if that's what it is. Follow the wire and see if it takes you to a 'capacitor' appearing device rear of left cylinder head.
Last edited by WVZR-1; Apr 6, 2018 at 10:07 PM.
Thread Starter
Intermediate
Joined: Mar 2018
Posts: 48
Likes: 2
I think I see a larger pink wire burried down there. That might be the power wire to the dist. Won't run without that!! There should also be a white wire for the tach. Those two wires plug into the bottom of that lump on the side of your dist.
Do I see exposed threads on that manifold bolt? I hope not!
Do I see exposed threads on that manifold bolt? I hope not!
Thread Starter
Intermediate
Joined: Mar 2018
Posts: 48
Likes: 2
I’m sorry I just now seen this. I’ll check first thing tomorrow to see th actual colors of them.
Race Director
Joined: Apr 2003
Posts: 17,695
Likes: 1,666
From: moraga ca
This is sort of off topic, but if the motor was just rebuilt and has no miles on it, why is there so much loose crap in the top of the intake. I hope the inside of the motor doesn't look like that. Also as Hotrod mentioned, you have a loose runner bolt.
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
Why have you decided to hide part of this picture? If that "too long" bolt, and the debris is any indication, you have a huge problem with putting this engine together. Sorry to be so direct, but it looks like you aren't being honest with us! Are you playing games, or are you just incompetent? I'm suspicious!
