Drive by wire question.. Please help!

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07-13-2009, 09:00 AM

#41

Obike

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Quote:

Originally Posted by stevejohns29

instead of doing all of that.. if i just would go with a WOT box, wouldn that fixmy problem? Considering your blow off wont fire if you never lose boost?

So you want to spend a minimum of $129, for something that won't fix the problem? That makes no sense.

The cheapest fix is to move the MAF connection to after the BOV... this can be done for less than $20. That's still not the most ideal solution, which is to recirculate. Recirculating would cost you a maximum of $50 in parts, with maybe an additional $50 for welding.

07-13-2009, 09:06 AM

#42

aen

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obike. it's okay, some people don't want to listen.

all you have to do is recirc. it's not that hard.

07-14-2009, 04:20 AM

#43

stevejohns29

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Quote:

Originally Posted by aen

obike. it's okay, some people don't want to listen.

all you have to do is recirc. it's not that hard.

yeah some people dont listen for a reason.

so i figured out that it was my wastegate and replaced it with a new tial today. No lag at all. Thanks for the help though anyways!

07-14-2009, 04:32 AM

#44

Nightbeat

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Glad you got it fixed, without spending money on the controller or recirc ur bov

07-14-2009, 04:41 AM

#45

stevejohns29

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me too! .. old turbo concepts wastegate was junk! .. always a pleasure doing business with Dezod anyways!

i think im still going to buy the WOT box for the 2-step launch feature.. we'll see

07-15-2009, 01:07 AM

#46

aen

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dope, at least you fixed it

guess me and obike should stop giving advice. we is stupido's of scionlife yes.

07-15-2009, 01:12 AM

#47

crush02342002

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Quote:

Originally Posted by aen

dope, at least you fixed it

guess me and obike should stop giving advice. we is stupido's of scionlife yes.

yes

...so come on hieu whats the "big plans"....are you staying in the game or throwing in the towal?

07-16-2009, 01:57 AM

#48

Iowa_TC1

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Quote:

Originally Posted by Obike

That is not lag. That is the ECU control strategy saying that at the current load levels, the amount of throttle you are requesting (WOT) will actually do nothing to improve performance and will be a detriment. Therefore the ECU will wait until load levels increase to the point that the requested throttle actually justifies the further opening of the throttle body.

Lag is the amount of time it takes from the moment the beginning of an event occurs to the the moment that event is detected. In this case the ECU sees the change in requested throttle, and then when conditions are met actually modifies the amount the throttle body is open.

You can change the system, for $10 in parts, to behave like a direct-cable system. But you will see no increase in power or efficiency, and will actually measure a loss.

There is a lot of DBW lag on the Tc, I got the DBW controller from descendant racing and it made a huge difference in response. It may be expensive to buy, but it is worth it to get ride of the lag.