Huntley MAF with other chips...
#32
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Hope this helps, because I am trying to understand some issues with my car also. Spoke with Dave at Lindsey today and he said that the voltage from the TPS should be about 3.5 (seen on the apexi/arc 11 etc) with the throttle fully open, but the voltage at the DME should be 4.6.
How do you measure the voltage at the DME?
biggles
How do you measure the voltage at the DME?
biggles
#34
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Okay, that's good to know. I'm not too far off on the voltage thing. My issue may be to loose of a throttle cable like Brian was seeing with his. I'll adjust it some and try again.
#36
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Originally Posted by Tom M'Guinn
FYI, the KLR boost out voltage is not what I expected -- not a 0-5v signal. It's a much lower voltage that I suspect is a pulse width, but have not had time to confirm.
The max TPS voltage should be around 3.3V, the exact value will depend on the KLR's 5V regulator which most likely has a 5-10% output tolerance.
#37
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Originally Posted by TT
It is a PWM signal, the guage is the same as the MPG one in the 944NA where the signal is related to the injector pulse width. The KLR pressure sensor is a 2bar unit.
#39
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Originally Posted by Tomas L
Just to clarify this, it's 2 bar absolute pressure (1 bar boost pressure).
#40
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Originally Posted by Tom M'Guinn
I think you are referring to the dash gauge. TT's post referred to the pressure sensor in the KLR. I have some hope that the sensor in the KLR reads up to 2 bar boost, despite the dash going only to 1 -- but I have not yet tested that either.
Both TT and I are referring to the MAP sensor in the KLR which is a 0-200 kpa absolute pressure sensor. I have changed mine to a 0-250 kpa sensor which enables me to log up to 1.5 bar boost.
#41
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Originally Posted by TT
It is a PWM signal, the guage is the same as the MPG one in the 944NA where the signal is related to the injector pulse width. The KLR pressure sensor is a 2bar unit.
The max TPS voltage should be around 3.3V, the exact value will depend on the KLR's 5V regulator which most likely has a 5-10% output tolerance.
The max TPS voltage should be around 3.3V, the exact value will depend on the KLR's 5V regulator which most likely has a 5-10% output tolerance.
.......The doctor is in........
#42
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Originally Posted by Tomas L
No, I'm not.
Both TT and I are referring to the MAP sensor in the KLR which is a 0-200 kpa absolute pressure sensor. I have changed mine to a 0-250 kpa sensor which enables me to log up to 1.5 bar boost.
Both TT and I are referring to the MAP sensor in the KLR which is a 0-200 kpa absolute pressure sensor. I have changed mine to a 0-250 kpa sensor which enables me to log up to 1.5 bar boost.
#43
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Originally Posted by Tom M'Guinn
Sorry to hear that, but glad to know it. Thanks. Any tips on sourcing that higher pressure sensor?
#44
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Originally Posted by Jon Moeller
Perry,
Not too sound like an idiot, but don't you want to adjust the throttle cable at the throttle body? Or, am I missing something, here?
-J
Not too sound like an idiot, but don't you want to adjust the throttle cable at the throttle body? Or, am I missing something, here?
-J
I haven't done a thing with it this week.... hopefully some wrenching will take place this weekend.
#45
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Perry951, check the pedal stop behind the pedal. If you like, come by later this month and I can check it for you with the monitor.