I've been working on my blazer for the past couple of years and have never needed help. It's January in New England, cold. My blazer starts up and instantly dies, doesn't try to keep running. Once it starts up I can give it gas to keep it going but it chugs along and without forcing it to run it dies. After a while, when the engine warms up it will stay running. But even then when I put it in drive it'll either stall immediately or it will stall once I stop the vehicle and then give it gas again. This happens a few times and then runs fine. The spider injectors are about a year old, there are no error codes. Emissions aren't great. The cat back exhaust is about 3 years old. I thought it might that it was running lean but the exhaust smells rather rich. The fuel filter hasn't been replaced yet but I don't beleive that's the problem due to it running rich. All sensors have been replaced within the past year. Can anyone give me advice on what the problem might be?

 

https://blazerforum.com/forum/2nd-ge...eakdown-88305/

Your 1995 uses the same procedures as described in this link, but it has different specs. Post all 4 readings