August 29, 2019 at 9:24 pm #559479
1996 chevy beretta with the 3.1L v6
I replaced my injectors and O2 sensor today in the quest of better MPG, and after, the first start was rough, but I expected this, what I didnt expect is the start about 4 hours later to struggle. Before this, you would turn the key for under a second and it would fire right up, but now it cranks longer and kind of sputters to life, like it doesnt fire up smoothly, so I drove it, got it warmed up, and it did the same thing warm, took a while to crank, didnt go instantly as it used to, try again for a little longer, sputters to life. But once it is running, it runs fine.
Does anybody have any ideas on what to check? I have no lights indicating anything.
I did a fuel pressure test, it goes up to around 41 or 42 psi, which according to my manual is normal, but after a few minutes drops down to the low 20s. I starter the engine and it goes down to around 37 which according to the manual is also normal (3-10 psi drop when running). I also checked around the injectors and around the inlet and outlet pipes and there is no fuel around them. So my guess is that some injector is leaking into the engine. Anybody know how to figure this out without taking everything apart? I check the front plugs and they look fine, the back ones are too much of a pain to remove tho lol.
And I have checked the connections on the tester. There is no fuel leaking, nor can I hear any air leaking out of them.
And I used my remote start to start it cold the other day, and it took probably around 4 to 5 seconds before it started and ran.
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