Thread: Where 's RPM sensor?RMP clamp ?
07-22-2010, 05:23 AM #1
Where 's RPM sensor?RMP clamp ?
RPM clamp ?
Today i just did it my self Boost Clamp ,
just from 1 peice Zener Dioad,
save ton of money to Riva Boost Clamp,thank RXPT400
I found if motor have some RPM sensor and
know which wire it sent signal output (voltage),
it should be trap,to limit voltage like boost also.
Might be in ECU itself ,atlest if should have some wire,
we just search for that wire and trap ground.
Any idea please.
07-22-2010, 03:19 PM #2
That's awesome you made your own boost clamp.
RPM is a little bit trickier to fool though because it is tracked my the internal clock in the ECU and if you try and mess with the crank position sensor feedback to the ECU, it can throw off your entire fuel curve as almost all the decisions the ECU makes reference RPM.
Just some food for thought.
07-23-2010, 10:17 AM #3
I'm not sure "crank position sensor " same with
"Cam postion sensor",
but it feed cam position,
if same thing ,it should use by rpm sensor by ECU also.
I'm not sure have anyone did a trap/clamp it before,
worth to try it and let see behavier,
i also have AFR monitor tool,i will try and let see.
07-23-2010, 10:30 AM #4
07-23-2010, 02:35 PM #5
I have been working hard here lately trying to get a piggyback fuel controller up and running which involves intercepting the crank position sensor's + and - wires with no luck. Tapping the wires is ok, but intercepting them does not allow the engine to start at all.
Also before I ever attempted using a piggyback system, I looked extensively into trying to raise the rev limit without an ECU reflash. It is an extremely involved process. It involves un-potting your ECU (digging out all the silicone surrounding the electronic board, which I do not recommend to anyone.
07-27-2010, 10:36 AM #6
or your custom electonic?
700$ vs $69.99
might worth a try un-potting !
because we can control our own Rev Limit ,more than R&D reflash ?
07-27-2010, 05:00 PM #7
07-28-2010, 08:59 AM #8
Thank you HitMan,
i will go reflash first untill i need more higher rev limitter,by manual unlock it.
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