I need some advice and insight as to what the solutions are to a couple of problems I have with my '91 Vert. as I can't find much on them too specifically, so I though I'd make a post so you guys can help me out. Again, I'm not totally sure if this is where this belongs or if this issue has been covered in another thread. So, my apologies if I'm wrong.
Just recently I have done the whole: "Mess Under the Intake" deal with all new vacuum and fuel hose where needed, as well as new gaskets, rebuilt 318is injectors O-Rings, clips, etc.
I also capped off both coolant nipples on the engine, and has been working fine for me so far. And so viewers are aware, these are all problems that have been accumulating over the past month, the most recent being the fuel issue.
Anyways my main problem is that just recently while I was driving the engine began to struggle to accelerate and began to pop and bang. (No muffler right now) The way it would accelerate was if I was flat out on the throttle. My thought is that it could be that for whatever reason the injectors are injecting too much fuel, causing it to bog when normally driving, popping when letting off the throttle, and running smoother when at full throttle. I'm not sure what could cause this other than possibly an electrical problem. Just about everything else fuel-wise is fine, I replaced the fuel filter and pump a few months ago.
Another problem of mine is that the idle is very rough, I have adjusted the idle screw so it idles at around 1k but it fluctuates from time to time. My thought is that it's the Idle control valve, I cleaned it out but it might just be too old and need to be replaced.
Next are vacuum leaks. Like I said, nearly everything on the intake side of the engine was replaced. But it still sounds like there's a leak somewhere and I can't seem to find it, any leads on where that could be would be hugely appreciated.
And fourth is somewhat hard to explain. When I floor it, it has less power than if i were to release it a bit. It feels almost if the throttle cable it being overextended or maybe its too short? I honestly am not sure, but it seems as if after a certain amount of throttle is applied it slacks up. Causing it to not be as open as it could be. Maybe this just needs to be adjusted.
So, my main questions are:
1. What could be causing the alleged too much fuel problem?
2. What can I do to fix the idle?
3. Is there any other areas I should look or specifics on vacuum leaks?
4. Would a loose or worn throttle cable be the cause of less throttle when pushed all the way to the floor?
Any help or tips is appreciated.
Thanks.
Just recently I have done the whole: "Mess Under the Intake" deal with all new vacuum and fuel hose where needed, as well as new gaskets, rebuilt 318is injectors O-Rings, clips, etc.
I also capped off both coolant nipples on the engine, and has been working fine for me so far. And so viewers are aware, these are all problems that have been accumulating over the past month, the most recent being the fuel issue.
Anyways my main problem is that just recently while I was driving the engine began to struggle to accelerate and began to pop and bang. (No muffler right now) The way it would accelerate was if I was flat out on the throttle. My thought is that it could be that for whatever reason the injectors are injecting too much fuel, causing it to bog when normally driving, popping when letting off the throttle, and running smoother when at full throttle. I'm not sure what could cause this other than possibly an electrical problem. Just about everything else fuel-wise is fine, I replaced the fuel filter and pump a few months ago.
Another problem of mine is that the idle is very rough, I have adjusted the idle screw so it idles at around 1k but it fluctuates from time to time. My thought is that it's the Idle control valve, I cleaned it out but it might just be too old and need to be replaced.
Next are vacuum leaks. Like I said, nearly everything on the intake side of the engine was replaced. But it still sounds like there's a leak somewhere and I can't seem to find it, any leads on where that could be would be hugely appreciated.
And fourth is somewhat hard to explain. When I floor it, it has less power than if i were to release it a bit. It feels almost if the throttle cable it being overextended or maybe its too short? I honestly am not sure, but it seems as if after a certain amount of throttle is applied it slacks up. Causing it to not be as open as it could be. Maybe this just needs to be adjusted.
So, my main questions are:
1. What could be causing the alleged too much fuel problem?
2. What can I do to fix the idle?
3. Is there any other areas I should look or specifics on vacuum leaks?
4. Would a loose or worn throttle cable be the cause of less throttle when pushed all the way to the floor?
Any help or tips is appreciated.
Thanks.
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