How to fit a throttle cut defender..?

[tartan_rob]

Came home from hols today to find my uprated DV's and throttle cut defender were sat waiting for me. Only problem id that there is no intsructions for the throttle cut device. Anyone know how to fit this?

[Mik]

I have a set of instructions but its in word format....will PDF it and upload it to the downloads section

Mik

[SimonS4MTM]

What is a throttle cut defender?

[Nordschleife]

you can do this by reprogramming the ECU.

[JonnyX]

What is a throttle cut defender?

It clamps the MAP sensor output (kind of like a low pass filter). ME 7.1, as many have
posted, is a fairly clever system. If you exceed your requested boost by a certain
margin it will close the throttle plate to about %40 open. I think the MAP output is
used to calculate the load and therefore scale other parameters such as timing. e.g.
because the ECU thinks your load is lower it will let you run more timing (until knock
sensors interfere).

[Mik]

Quote from AW

"TCD interferes with the e-gas system as it alters the signal that the ECU would normally see from the boost sensor. Thus, the ECU cannot see the boost signal that the TCD blocks, nor can the ECU react to this boost if indeed it is a dangerous condition, say from a failure of the wastegate system, since it does not know it exists.

The same idea applies to the MBC, as the N75 wastegate solenoid action dictated by the ECU is being overrided by the mechanical bleed of the MBC."

Mik

[smurfbus]

If you want some engine safety with TCD you could put a MBC in paraller to control the max boost manually!

[smurfbus]

If you want some engine safety with TCD you could put a MBC in paraller to control the max boost manually!

[tartan_rob]

Thanks guys. I have fitted both a MBC and the anti-throttle cut. What a difference. Car is electric and does not run above 1.2bar.....as MBC fitted boost should never exceed 1.2bar...? What a result.

[Verruckt]

If you want some engine safety with TCD you could put a MBC in paraller to control the max boost manually!

Make that a must. Using a TCD without an MBC setup to control the spikes could result in disaster.

With an MBC, there is little risk involved.

[Dippy]

With an MBC, there is little risk involved.

Low probability* but high severity. Few people have exactly the same qualification for risk.

*Assuming adequate installation and maintenance.