Throttle body mod?

DDS789

DDS789

Well-Known Member
Ps your ramblings are all taken, I'd never dismiss anything I'm here to learn :D
 
R

raph

Active Member
Maf has intake temp

and the earlier evos have a fast idle valve that's filled with a wax that reacts to temp..I opened up my dsm tb and looked inside,the waxy like material makes the bypass bores open up or close due to temps .. and yes it had the same idle stepper.

If I find it in the shed I can post up pics.
 
R

raph

Active Member
Aww the dsm vfaqs page is running on the wayback when machine,there was a beatiful Isc and BISS explanatoin..all 4g63 specific.

In a nutshell all the diagrams are gone :(
 
DDS789

DDS789

Well-Known Member
Maf has intake temp

and the earlier evos have a fast idle valve that's filled with a wax that reacts to temp..I opened up my dsm tb and looked inside,the waxy like material makes the bypass bores open up or close due to temps .. and yes it had the same idle stepper.

If I find it in the shed I can post up pics.

Would be interested as in my opinion anything beyond the mad sensor is irrelevant to what we've talked of.

Surely for the ecu to make adjustments it would need to be after the TB???
 
Simon@NTS

Simon@NTS

Trader
Trader
The coolant going through the tb is there to stop it from freezing in extreme conditions, that's all, personally I would leave it connected as this country sees a lot of moisture and sub zero temperatures and I don't think there's any benefits from disconnecting it, as for idle it won't be effected at all, connected or disconnected
 
Simon@NTS

Simon@NTS

Trader
Trader
In this climate I don't think your going to miss it, if you do decide to get rid
 
DDS789

DDS789

Well-Known Member
If I'm ever under there again doing something else I'll delete it. Not going of take it all apart just to do it lol.
 

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