02-22-2020, 12:09 AM
not me knowing answer to the green questions above.
It seems you are fixated, on TPS big time.
lets do TPS myths or not lists. (online web sites full of myth) ever tuned a custom ECU you will learn this fast if did, tuning these sensor and Fuel MAPs.
first off this sensor NEVER is used at all just driving at 3000 rpm down a flat road, ever, the ohms is like 2500 and steady the ECU IGNOREs IF STEADY,
the key word there is STEADY.
on this car the primary sensors for fueling are MAP and ECT, not the TPS ever.
yes the TPS finds you moving the right foot fast up or down say cruising the ECU SEES YOU do that, at TPS, TPS is really THROTTLE ANGLE, (seen on all OBD2 cars) new name.
the ECU sees move move your foot down to say go faster, or pass a car, the ECU goes to enrich move from 14.7:1 to about 12:1 never 10.1 ever.
It does this for one reason the slow MAP sensor, if the TPS is missing or dead, the engine bogs (fast hesitation then wakes up fast due to MAP coming online NOW)
the TPS is a super crude device. (you are correct dead spots on it are super bad, and those do cause DTC errors every time. if real.
The TPS is CRUDE, how crude is it well supper crude, this makes it cheaper to make, and accurate is never important (just no shorts and no opens allowed) 0hms bad infinity bad)
on all new cars the TPS is auto-calibrated on this pig only idle switch is calibrated, by humans
the TPS end to end OHMS can be 3000 to 6000 ohms, YES THAT CRUDE and the ECU could care less, this error, The ECU watches voltage only on the wiper arm center pin.
the ECU (ignoring idle switch) only looks to see of the voltage changes.
say driving at 3000 rpm the TPS might read 2.5vdc, (50% throttle angle) 1 to 4 volts is range, par...
the ECU watches this TPS wiper pin close on a hot engine, for fast changes, only, if foot is steady the MAP +O2 set fuel rates NEVER THE TPS.
if the TPS does not fail DTC errors most are good.
The ECU also full time watches for TPS gross errors, called Catastrophic testing and if the sensor shows 0v or 5v ever, DTC sets, in 1second flat.
The flat spot on any TPS output (dead carbon) will cause illegal 5vdc, and DTC will set, for sure driving with DIAG jumper inserted (this is harmess this 1 jumper)
I bet your TPS is fine and you are ignoring DTCs or are not testing for why fueling rates are wrong full time and for sure is not this TPS.
(and yes the idle switch calib, is very tricky, as it not being a true switch makes that true, a silly lame suzuki carbon switch, unlike better cars with real switch
or modern cars that use just 3 pin TPS with throttle angle as idle proof, TV.
the idle switch does many things too.
at idle (TV) wakes up ISC and sets rpm to 800 +-50 RPM..
kills dead the EGR(via VSV)
sets aggressive spark timing maps just for idle (saves fuel and keeps cat cool and less engine heat and less RADiator load
)
or raises idle to 1000 for AC on.
It seems you are fixated, on TPS big time.
lets do TPS myths or not lists. (online web sites full of myth) ever tuned a custom ECU you will learn this fast if did, tuning these sensor and Fuel MAPs.
first off this sensor NEVER is used at all just driving at 3000 rpm down a flat road, ever, the ohms is like 2500 and steady the ECU IGNOREs IF STEADY,
the key word there is STEADY.
on this car the primary sensors for fueling are MAP and ECT, not the TPS ever.
yes the TPS finds you moving the right foot fast up or down say cruising the ECU SEES YOU do that, at TPS, TPS is really THROTTLE ANGLE, (seen on all OBD2 cars) new name.
the ECU sees move move your foot down to say go faster, or pass a car, the ECU goes to enrich move from 14.7:1 to about 12:1 never 10.1 ever.
It does this for one reason the slow MAP sensor, if the TPS is missing or dead, the engine bogs (fast hesitation then wakes up fast due to MAP coming online NOW)
the TPS is a super crude device. (you are correct dead spots on it are super bad, and those do cause DTC errors every time. if real.
The TPS is CRUDE, how crude is it well supper crude, this makes it cheaper to make, and accurate is never important (just no shorts and no opens allowed) 0hms bad infinity bad)
on all new cars the TPS is auto-calibrated on this pig only idle switch is calibrated, by humans
the TPS end to end OHMS can be 3000 to 6000 ohms, YES THAT CRUDE and the ECU could care less, this error, The ECU watches voltage only on the wiper arm center pin.
the ECU (ignoring idle switch) only looks to see of the voltage changes.
say driving at 3000 rpm the TPS might read 2.5vdc, (50% throttle angle) 1 to 4 volts is range, par...
the ECU watches this TPS wiper pin close on a hot engine, for fast changes, only, if foot is steady the MAP +O2 set fuel rates NEVER THE TPS.
if the TPS does not fail DTC errors most are good.
The ECU also full time watches for TPS gross errors, called Catastrophic testing and if the sensor shows 0v or 5v ever, DTC sets, in 1second flat.
The flat spot on any TPS output (dead carbon) will cause illegal 5vdc, and DTC will set, for sure driving with DIAG jumper inserted (this is harmess this 1 jumper)
I bet your TPS is fine and you are ignoring DTCs or are not testing for why fueling rates are wrong full time and for sure is not this TPS.
(and yes the idle switch calib, is very tricky, as it not being a true switch makes that true, a silly lame suzuki carbon switch, unlike better cars with real switch
or modern cars that use just 3 pin TPS with throttle angle as idle proof, TV.
the idle switch does many things too.
at idle (TV) wakes up ISC and sets rpm to 800 +-50 RPM..
kills dead the EGR(via VSV)
sets aggressive spark timing maps just for idle (saves fuel and keeps cat cool and less engine heat and less RADiator load
)
or raises idle to 1000 for AC on.
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