tps reading 70% open throttle
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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kowboy059
tps reading 70% open throttle
It is doing that at when my foot is off the pedal. How do I change this?
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FoundSoul
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On to Tools menu you can calibrate your TPS. Then close Megatune and power off your MS. When you come back in and power up you'll be good to go...
Jerry a.k.a. 'FoundSoul' /// **Now Available** MegaSquirtPNP full Plug-N-Play EMS for the 90-97 Mazda Miata
You could also have it backwards so it goes down when you open it, easy fix flip 2 wires. If the reading does not change when you move the throttle you could have the wiper wire to the wrong terminal in the TPS.
On my projects I calibrated the TPS without the throttle linkage to the pedal hooked up and with the throttle stop set to the physical close limit of the throttle body. That way I know that 0 is the mechanical close limit and 100 is the mechanical open limit. Its sort of handy to be able to see that you have a linkage problem or that something is keeping the throttle from closing or opening all the way.
On my projects I calibrated the TPS without the throttle linkage to the pedal hooked up and with the throttle stop set to the physical close limit of the throttle body. That way I know that 0 is the mechanical close limit and 100 is the mechanical open limit. Its sort of handy to be able to see that you have a linkage problem or that something is keeping the throttle from closing or opening all the way.
73 Cadillac Eldorado convert Fairly stock 8.5:1 500cuin/8.2L
MSIIV3,2.88,relay board, LC-1,Older Holley 670cfm 2bbl TBI w/85lbhr injectors.
MSIIV3,2.88,relay board, LC-1,Older Holley 670cfm 2bbl TBI w/85lbhr injectors.
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FoundSoul
- MegaSquirt Newbie
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True, and once calibrated you can't see this via the TPS% gauge, but it will wreak havoc with your tuning. To make sure that's not the case though enable a TPS ADC gauge and make sure as you apply the throttle that the ADC number increases. Or, maybe even simpler, when you calibrate the TPS, make sure the WOT number is higher than the closed throttle number.73Eldo wrote:You could also have it backwards so it goes down when you open it, easy fix flip 2 wires. If the reading does not change when you move the throttle you could have the wiper wire to the wrong terminal in the TPS.
Jerry a.k.a. 'FoundSoul' /// **Now Available** MegaSquirtPNP full Plug-N-Play EMS for the 90-97 Mazda Miata