ZR-1 Net Registry Forums - View Single Post - Bringing the Champ back to fighting condition

bmarcum · 09-16-2024

Ok. I have been driving my 90 Z VIN1965 and it has not been a driven car for 24 years. Not sure the history and why it wasn't driven but for all signs (oil tags, and condition) it not been a sports car for 24 years.

I have a miss that is weird. It only misses when the secondary are on. It seems to only miss when warm. Still trying to confirm warm only miss.

Thoughts on what I am chasing. I don't have a scope for LT5 waste space, so I can't tell if it is a cylinder or a bank that is missing. I have not pulled the plugs yet. But it is very intriguing that it does not miss with secondary off. Thoughts? I am a big one for diagnosing then fixing vs just changing plugs and wires especially pulling the intake. Thanks to all my LT5 friends!

09-16-2024	#1
bmarcum Join Date: Oct 2018 Location: Indiana Posts: 64	Bringing the Champ back to fighting condition Ok. I have been driving my 90 Z VIN1965 and it has not been a driven car for 24 years. Not sure the history and why it wasn't driven but for all signs (oil tags, and condition) it not been a sports car for 24 years. I have a miss that is weird. It only misses when the secondary are on. It seems to only miss when warm. Still trying to confirm warm only miss. Thoughts on what I am chasing. I don't have a scope for LT5 waste space, so I can't tell if it is a cylinder or a bank that is missing. I have not pulled the plugs yet. But it is very intriguing that it does not miss with secondary off. Thoughts? I am a big one for diagnosing then fixing vs just changing plugs and wires especially pulling the intake. Thanks to all my LT5 friends!