93 40th Anniversary with 4500 miles missing
Thread Starter
Intermediate
Joined: Sep 2022
Posts: 26
Likes: 1
93 40th Anniversary with 4500 miles missing
Just bought the car, drove it 30 miles and now it's missing. Replaced the spark plugs, new coil and ignition control module. Injectors read 13.8 to 14 ohms. No codes. Is it optispark time?
Pro
Joined: Jan 2022
Posts: 689
Likes: 245
From: Spokane Wa.
My understanding is that the injectors can ohm out ok but still have an issue with clogged orifices. If the car only has 4500 miles I could see all that sitting leading to that taking place. Clogged injectors won't necessarily throw any codes.
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
Does it miss all the time? Hot, Cold, idle, WOT, cruise.... Have you tried injector cleaner in case it had old fuel in it?
Melting Slicks
Joined: Sep 2010
Posts: 2,422
Likes: 202
Woow congrats.
That is just shy of brand new.
If this is the true mileage. Nothing should have worn out/ failed verses a car with 130k plus miles.
Battery condition no bad cells.
Spark plug wires can deteriorate.
(1) spark plug wire condition
(2) 93 with 4.5k leaves serious park time.
Gas/ moisture. Could lead to rust/ other build up
Do you have a fuel pressure gauge.
Check fuel pressure at the rear fuel rail RS
Cannot hurt to install a new fuel filter.
You will see the condition if containmenated.
That is just shy of brand new.
If this is the true mileage. Nothing should have worn out/ failed verses a car with 130k plus miles.
Battery condition no bad cells.
Spark plug wires can deteriorate.
(1) spark plug wire condition
(2) 93 with 4.5k leaves serious park time.
Gas/ moisture. Could lead to rust/ other build up
Do you have a fuel pressure gauge.
Check fuel pressure at the rear fuel rail RS
Cannot hurt to install a new fuel filter.
You will see the condition if containmenated.
