Car really leans out around 2000-3000rpm
#16
Evolved Member
iTrader: (38)
It's not a tuning issue, I have the same type of problem, car ran great and just started breaking up and sputtering. Now it idles fine but when you try to drive it around 2-3,000 rpm the a/f gauge goes lean and it misfires like the plugs are fowled, sounds like a subi.
Did compression test, changed the plugs three times, new pump, changed cam position sensor.
Next will be fuel pressure regulator, crank sensor, fic 2150's, omni 4 bar, then the ecu. I'm determined to figure this out!
What I think is happening is for some reason the engine is running super rich, so rich that raw fuel is going past my wideband making it read lean due to not being able to get a reading off liquid. I can smell it and at the rate my gas gauge is dropping from trouble shooting, that's gotta be it.
Let ya know what I find...
Did compression test, changed the plugs three times, new pump, changed cam position sensor.
Next will be fuel pressure regulator, crank sensor, fic 2150's, omni 4 bar, then the ecu. I'm determined to figure this out!
What I think is happening is for some reason the engine is running super rich, so rich that raw fuel is going past my wideband making it read lean due to not being able to get a reading off liquid. I can smell it and at the rate my gas gauge is dropping from trouble shooting, that's gotta be it.
Let ya know what I find...
#17
EvoM Community Team Leader
It's not a tuning issue, I have the same type of problem, car ran great and just started breaking up and sputtering. Now it idles fine but when you try to drive it around 2-3,000 rpm the a/f gauge goes lean and it misfires like the plugs are fowled, sounds like a subi.
Did compression test, changed the plugs three times, new pump, changed cam position sensor.
Next will be fuel pressure regulator, crank sensor, fic 2150's, omni 4 bar, then the ecu. I'm determined to figure this out!
What I think is happening is for some reason the engine is running super rich, so rich that raw fuel is going past my wideband making it read lean due to not being able to get a reading off liquid. I can smell it and at the rate my gas gauge is dropping from trouble shooting, that's gotta be it.
Let ya know what I find...
Did compression test, changed the plugs three times, new pump, changed cam position sensor.
Next will be fuel pressure regulator, crank sensor, fic 2150's, omni 4 bar, then the ecu. I'm determined to figure this out!
What I think is happening is for some reason the engine is running super rich, so rich that raw fuel is going past my wideband making it read lean due to not being able to get a reading off liquid. I can smell it and at the rate my gas gauge is dropping from trouble shooting, that's gotta be it.
Let ya know what I find...
#18
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Join Date: Jan 2008
Location: new jersey
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i have a spare set of 560cc high z injectors i can test, i also have another map sensor i can swap out. i have a spare fpr i can test with but i dont remember where i stored that. and i have the replacement pump.
#19
Evolved Member
iTrader: (38)
What money, I have 2-3 of every sensor, a friend with a set of 2150's, well I guess I did buy the plugs..
Op is looking for help, I believe I have the same issue. If you have some advice or ideas I welcome them, but if you have nothing worth value to offer, please save the post.
#20
EvoM Community Team Leader
well i agree with u but when you have no CEL and nothing is pointing directly to the issue then there is only so much testing you can do to verify parts are functional.
i have a spare set of 560cc high z injectors i can test, i also have another map sensor i can swap out. i have a spare fpr i can test with but i dont remember where i stored that. and i have the replacement pump.
i have a spare set of 560cc high z injectors i can test, i also have another map sensor i can swap out. i have a spare fpr i can test with but i dont remember where i stored that. and i have the replacement pump.
#21
EvoM Community Team Leader
What makes you think I haven't tried that, next time before you assume that everyone but you is a dumbazz, ask a few questions first. No cels, no signs, everything looks to be in working order, if you read what I wrote, I did trouble shoot including boost leak tests. If you have better ideas I'm all ears, and as far as research, how do you think I found this thread?
What money, I have 2-3 of every sensor, a friend with a set of 2150's, well I guess I did buy the plugs..
Op is looking for help, I believe I have the same issue. If you have some advice or ideas I welcome them, but if you have nothing worth value to offer, please save the post.
What money, I have 2-3 of every sensor, a friend with a set of 2150's, well I guess I did buy the plugs..
Op is looking for help, I believe I have the same issue. If you have some advice or ideas I welcome them, but if you have nothing worth value to offer, please save the post.
#22
Evolved Member
iTrader: (38)
Sounds like some more assumptions. However your now asking questions, that I can work with. Being that is seemed to be a fuel issue with the gauge running lean the first thought since the car runs on e85 was that it might have a pump going. I being lazy just activated the second pump out of my double pumper and shut the primary off and the car ran great again. About a day later, same problem returned so I put in my spare bnib 450 I had in my tool box. The problem is still there. Then came the plug changes, cam sensor etc.
I'm going to change out the fuel pressure regulator when I get home to see if that helps. I have a tuner coming by at 8 tonight to check the fuel trims, pulses and sensor voltage as well as log the problem.
The car runs in closed loop all the time, just the way the tuner set it up.
I'm going to change out the fuel pressure regulator when I get home to see if that helps. I have a tuner coming by at 8 tonight to check the fuel trims, pulses and sensor voltage as well as log the problem.
The car runs in closed loop all the time, just the way the tuner set it up.
#23
EvoM Community Team Leader
Sounds like some more assumptions. However your now asking questions, that I can work with. Being that is seemed to be a fuel issue with the gauge running lean the first thought since the car runs on e85 was that it might have a pump going. I being lazy just activated the second pump out of my double pumper and shut the primary off and the car ran great again. About a day later, same problem returned so I put in my spare bnib 450 I had in my tool box. The problem is still there. Then came the plug changes, cam sensor etc.
I'm going to change out the fuel pressure regulator when I get home to see if that helps. I have a tuner coming by at 8 tonight to check the fuel trims, pulses and sensor voltage as well as log the problem.
The car runs in closed loop all the time, just the way the tuner set it up.
I'm going to change out the fuel pressure regulator when I get home to see if that helps. I have a tuner coming by at 8 tonight to check the fuel trims, pulses and sensor voltage as well as log the problem.
The car runs in closed loop all the time, just the way the tuner set it up.
#24
Evolved Member
iTrader: (38)
This car has had the same pump set up and wiring on it for the past 3yrs. I would have to say that's the most reliable part of the car. It never burnt up a pump, and the one I took out still works good. Also my secondary pump I switched to doesn't run off the same circuitry as the primary, their completely independent of one another.
I could have sworn he said closed loop, I'll check with him again and make sure.
I could have sworn he said closed loop, I'll check with him again and make sure.
#25
EvoM Community Team Leader
This car has had the same pump set up and wiring on it for the past 3yrs. I would have to say that's the most reliable part of the car. It never burnt up a pump, and the one I took out still works good. Also my secondary pump I switched to doesn't run off the same circuitry as the primary, their completely independent of one another.
I could have sworn he said closed loop, I'll check with him again and make sure.
I could have sworn he said closed loop, I'll check with him again and make sure.
#26
EvoM Community Team Leader
iTrader: (60)
You guys get your feelings hurt way too easy.
If you're gonna act like little kids and/or not take useful advice, fix your own ****ing cars.
Don't come here saying you don't know what's wrong, then shoot down every idea that's offered to you, and in a rude way, at that. We're all here trying to help you. For FREE.
Jesus Christ, kids these days.
If you're gonna act like little kids and/or not take useful advice, fix your own ****ing cars.
Don't come here saying you don't know what's wrong, then shoot down every idea that's offered to you, and in a rude way, at that. We're all here trying to help you. For FREE.
Jesus Christ, kids these days.
#27
Evolved Member
iTrader: (38)
I'm really not sure who that post is for hopefully not me, if it is than your reading comprehension skills need work.
First off, I never asked anyone for help with anything, I came on here and simply stated to the op that I have the same issue and what I have done and plan on doing to find it. This other guy comes in and offers no advice, no real tips and nothing to help the situation besides ridiculing my methods and with no real knowledge of my situation or what I have done begins telling me what I already know.
I wouldn't have to spell this out to you if you had read then understood what you read. So the only person being childish is you and it shows in your lack of reading comprehension.
So yes, I am fixing my own ****ing car, you need to go back to what school let you graduate and let them know they have failed you.
Instead of crying over what you see on the board, find a corner to cry in and stop making unuseful posts and save the space for someone with something useful to contribute.
Thanks.
First off, I never asked anyone for help with anything, I came on here and simply stated to the op that I have the same issue and what I have done and plan on doing to find it. This other guy comes in and offers no advice, no real tips and nothing to help the situation besides ridiculing my methods and with no real knowledge of my situation or what I have done begins telling me what I already know.
I wouldn't have to spell this out to you if you had read then understood what you read. So the only person being childish is you and it shows in your lack of reading comprehension.
So yes, I am fixing my own ****ing car, you need to go back to what school let you graduate and let them know they have failed you.
Instead of crying over what you see on the board, find a corner to cry in and stop making unuseful posts and save the space for someone with something useful to contribute.
Thanks.
#28
Evolved Member
iTrader: (38)
you could apply that logic to every part of the car...Everything works fine until it doesn't. Also i can't really follow what your saying, you claimed everything works fine, but your having problems, then you switched to another pump and that fixed it, but then it didn't. Have you actually tested your circuits? You say the first pump still works good but how do you know that? If it still works fine why did switching to the secondary pump make a difference.
Thanks for trying, but please focus on the op as he is the one asking for help not I.
If I need help I will make my own thread. Thanks for your understanding.
#29
EvoM Community Team Leader
Hey man, not to be rude and if you feel I have then I apologize, but constantly ridiculing what I have done and offering no real help I can use isn't helping.
Thanks for trying, but please focus on the op as he is the one asking for help not I.
If I need help I will make my own thread. Thanks for your understanding.
Thanks for trying, but please focus on the op as he is the one asking for help not I.
If I need help I will make my own thread. Thanks for your understanding.