Chip or anyone...in build TC on the Em pro or what???

Throttlestop · Dec 17, 2007

motty said:
BTW, the K5 also uses the fast idle mode of the STV to reduce engine braking above a certain RPM limit. It is easy to see from data logging the TPS and the STPS.

Motty, are you positive about this? And at what RPM?

2cAnnons · Dec 17, 2007

how much is the em pro?

Throttlestop · Dec 17, 2007

They're sold here for the equivalent of US$1066, without the race harness. The harness clocks in at just under US$400. You have to get it from your own Yosh dealer, for warranty reasons.

Stocky · Dec 17, 2007

Throttlestop said:
Motty, are you positive about this? And at what RPM?

Interesting reading that they may not be adjusted for this function from the factory though

motty · Dec 17, 2007

Throttlestop said:
Motty, are you positive about this? And at what RPM?

Here is a picture from my K5 1000. The TP is at the bottom zoomed in on the under 2% throttle opening (that's why it looks a little noisy).

Orange is the STPS, black is RPM. As the throttle was closed the STV went to the fast idle mode right away and increased the TP by about 0.5%. It is not much but it would have raised the idle speed by about 500 RPM or more if the engine was really idling. Then as the RPM drops below 4500 the fast idle mode is stopped.

I guess the amount of the idle increase could be changed by the fast idle speed adjusting screw.

Tim Radley · Dec 17, 2007

Stocky said:
Interesting reading that they may not be adjusted for this function from the factory though

There is a section in the em-pro manual for k5-k7 on adjusting this when you swap from stock ecu to em-pro.

Stocky · Dec 17, 2007

I wonder if it's used for emissions on the stock ECU and engine braking and throttle transition on the EMPro ?

BallisticParts · Dec 17, 2007

The TC use the secondaries and spark to control spin....the secondaries are the fly by wire.

The engine braking function (one of the best features of the EM-Pro) uses the secondaries as well. Not he ICS.

Also...the engine braking function is gear dependent, which is really cool.

Chip or anyone...in build TC on the Em pro or what???

Throttlestop

2cAnnons

Throttlestop

Stocky

motty

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