Its official! ATI/Procharger aint gotta clue!
#21
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Originally posted by jesseenglish
EJ's A/F ratios are fine, he gets detonation because of timing.
EJ's A/F ratios are fine, he gets detonation because of timing.
#22
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I'm not doubting your technical expertise, and I know what it's like to be **** about a self install because I did mine too. We're just saying that it could be something else. If you are sure that everything is perfect. I suggest you call ATI and ask them about it. You might have a bad FMU.
I'll look up the build date on mine, but I highly doubt they'd put different injectors in your car because that would take a lot of R&D to do and why would they waste the money on something that already works fine.
I'll look up the build date on mine, but I highly doubt they'd put different injectors in your car because that would take a lot of R&D to do and why would they waste the money on something that already works fine.
#23
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Originally posted by swinke
In some circles this may not matter but I design and build broadband CATV systems for a living. The details that have to be observed in my daily work life are finite in comparison to the crude matter of tuning a FI, computer controlled, fuel injected car. I have checked everything mentioned in this thread at least twice before today. I did the install myself. I am very **** about most things I get involved in. My technical acumen far exceeds 99.9% of the people I meet in my field. I am certain I have not left out any detail that would cause this issue. There is something very different about my car/kit than yours, obviously. Let’s try and figure out what it is. EJ has this very same issue. It’s not just me here.
In some circles this may not matter but I design and build broadband CATV systems for a living. The details that have to be observed in my daily work life are finite in comparison to the crude matter of tuning a FI, computer controlled, fuel injected car. I have checked everything mentioned in this thread at least twice before today. I did the install myself. I am very **** about most things I get involved in. My technical acumen far exceeds 99.9% of the people I meet in my field. I am certain I have not left out any detail that would cause this issue. There is something very different about my car/kit than yours, obviously. Let’s try and figure out what it is. EJ has this very same issue. It’s not just me here.
And EJ does not have the same issue at all...
#24
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Originally posted by swinke
I will try that. That’s what I was looking for. Hadn’t thought of that one yet.
I will try that. That’s what I was looking for. Hadn’t thought of that one yet.
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Originally posted by jesseenglish
The voltage out to the pump is a PWM signal. I don't know how your logger operates, but mine doesn't like PWM signals. You might have to grab an oscope, I know I did
The voltage out to the pump is a PWM signal. I don't know how your logger operates, but mine doesn't like PWM signals. You might have to grab an oscope, I know I did
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Originally posted by jesseenglish
I'm not doubting your technical expertise, and I know what it's like to be **** about a self install because I did mine too. We're just saying that it could be something else. If you are sure that everything is perfect. I suggest you call ATI and ask them about it. You might have a bad FMU.
I'll look up the build date on mine, but I highly doubt they'd put different injectors in your car because that would take a lot of R&D to do and why would they waste the money on something that already works fine.
I'm not doubting your technical expertise, and I know what it's like to be **** about a self install because I did mine too. We're just saying that it could be something else. If you are sure that everything is perfect. I suggest you call ATI and ask them about it. You might have a bad FMU.
I'll look up the build date on mine, but I highly doubt they'd put different injectors in your car because that would take a lot of R&D to do and why would they waste the money on something that already works fine.
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#27
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Originally posted by swinke
I have an HP broadband analyzer on hand but its functions are all preset. I don’t believe my Fluke true RMS will work either seeing as it only averages for 60hz cycle. Are you sure the pump signal is PWM? Why go through all the trouble just to modulate/regulate a DC source device?
I have an HP broadband analyzer on hand but its functions are all preset. I don’t believe my Fluke true RMS will work either seeing as it only averages for 60hz cycle. Are you sure the pump signal is PWM? Why go through all the trouble just to modulate/regulate a DC source device?
I understand about anything odd, but this engine is used in more than just the 350Z and I believe they all use the same injectors.
#28
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Originally posted by swinke
EJ has this very same issue. It’s not just me here.
EJ has this very same issue. It’s not just me here.
Last edited by elektrik_juggernaut; 12-26-2003 at 02:13 PM.
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Originally posted by GaryK
And I am a software and controls engineer that "wastes" all his money (and anybody else's he gets his hands on) on building, tuning, and racing cars. I also do some work on these things part time at a shop. Lets see...3.93 gpa in college, president's list, multiple achievement awards, blah, blah, blah....I'm just trying to help.
And EJ does not have the same issue at all...
And I am a software and controls engineer that "wastes" all his money (and anybody else's he gets his hands on) on building, tuning, and racing cars. I also do some work on these things part time at a shop. Lets see...3.93 gpa in college, president's list, multiple achievement awards, blah, blah, blah....I'm just trying to help.
And EJ does not have the same issue at all...
#31
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Originally posted by swinke
Are you sure the pump signal is PWM? Why go through all the trouble just to modulate/regulate a DC source device?
Are you sure the pump signal is PWM? Why go through all the trouble just to modulate/regulate a DC source device?
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Originally posted by jesseenglish
Yes, I'm sure unfortunately. It's because the FMU is completely digital so it's the easiest way for them to regulate the DC voltage.
I understand about anything odd, but this engine is used in more than just the 350Z and I believe they all use the same injectors.
Yes, I'm sure unfortunately. It's because the FMU is completely digital so it's the easiest way for them to regulate the DC voltage.
I understand about anything odd, but this engine is used in more than just the 350Z and I believe they all use the same injectors.
#33
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Originally posted by jesseenglish
Yours isn't an A/F ratio problem though right? It's a timing issue which is not what swinke's problem is.
Yours isn't an A/F ratio problem though right? It's a timing issue which is not what swinke's problem is.
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Originally posted by elektrik_juggernaut
well that depends on how you look at it.......i shouldn't be stuck at an 11.8:1 AF as my richest setting, but thats as rich as the FMU will let me go at the highest RPM/boost levels........i should be able to get more fuel than that in there, to get the 11-11.5:1 that i'd like to have
well that depends on how you look at it.......i shouldn't be stuck at an 11.8:1 AF as my richest setting, but thats as rich as the FMU will let me go at the highest RPM/boost levels........i should be able to get more fuel than that in there, to get the 11-11.5:1 that i'd like to have
#35
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I really doubt our Z's are different. It could be any one of a dozen things. I'm not gonna list every possible thing, but here's my short list.
aux fuel pumps not as efficient
Bad FMU/transducer
pinched boost line
leaking boost line/vacuum tree/bypass valve line
weak alternator
pinched/kinked fuel line
dirty/clogged injector/s
dirty fuel filter
weak stock fuel pump
aux fuel pumps not as efficient
Bad FMU/transducer
pinched boost line
leaking boost line/vacuum tree/bypass valve line
weak alternator
pinched/kinked fuel line
dirty/clogged injector/s
dirty fuel filter
weak stock fuel pump
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Originally posted by jesseenglish
I really doubt our Z's are different. It could be any one of a dozen things. I'm not gonna list every possible thing, but here's my short list.
aux fuel pumps not as efficient
Bad FMU/transducer
pinched boost line
leaking boost line/vacuum tree/bypass valve line
weak alternator
pinched/kinked fuel line
dirty/clogged injector/s
dirty fuel filter
weak stock fuel pump
I really doubt our Z's are different. It could be any one of a dozen things. I'm not gonna list every possible thing, but here's my short list.
aux fuel pumps not as efficient
Bad FMU/transducer
pinched boost line
leaking boost line/vacuum tree/bypass valve line
weak alternator
pinched/kinked fuel line
dirty/clogged injector/s
dirty fuel filter
weak stock fuel pump
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make sure there is no check valve in the aux pump you chose...
also, make sure the check valve in the fuel line "loop" around the aux pump is in the right direction.
you can see someone's mistake on this here: http://home.earthlink.net/~micfly/returnless1.htm
m
also, make sure the check valve in the fuel line "loop" around the aux pump is in the right direction.
you can see someone's mistake on this here: http://home.earthlink.net/~micfly/returnless1.htm
m
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Originally posted by SKiDaZZLe
make sure there is no check valve in the aux pump you chose...
also, make sure the check valve in the fuel line "loop" around the aux pump is in the right direction.
you can see someone's mistake on this here: http://home.earthlink.net/~micfly/returnless1.htm
m
make sure there is no check valve in the aux pump you chose...
also, make sure the check valve in the fuel line "loop" around the aux pump is in the right direction.
you can see someone's mistake on this here: http://home.earthlink.net/~micfly/returnless1.htm
m