I NEED Boost... Opinions puh-lease

[Focus_Sh1ft]

^ Yeah sorry, disregard that.

Looking at those excel sheets, it's pretty aparent 75% throttle plays a large role in changing to open loop. MAF reading seems to be pretty irrelevant, so my previous idea is (most likely) not going to work.

However, what if we mapped the TPS to one of the analog signals of the FIC? Then, could we possibly manipulate that signal to 75%? That would force open loop... This is probably way oversimplified and I'm sure there would be multiple other issues including a CEL.

eTiMaGo, we're going to figure this out this time around. I need my car running safely, and that turbo ain't coming out.

[eTiMaGo]

Originally Posted by Focus_Sh1ft

However, what if we mapped the TPS to one of the analog signals of the FIC? Then, could we possibly manipulate that signal to 75%? That would force open loop... This is probably way oversimplified and I'm sure there would be multiple other issues including a CEL.

Sounds like quite the recipe for unintended acceleration!!!

eTiMaGo, we're going to figure this out this time around. I need my car running safely, and that turbo ain't coming out.

sir yes sir! but keep in mind all I can offer is theoretical, we need all the experience amassed over the past few years from our 1NZ gurus

[Focus_Sh1ft]

Originally Posted by eTiMaGo

Sounds like quite the recipe for unintended acceleration!!!

sir yes sir! but keep in mind all I can offer is theoretical, we need all the experience amassed over the past few years from our 1NZ gurus

Agreed, I'm hoping others with some knowledge will chime in with ideas. I'm really hoping to get this working with the FIC, and I know we can do it...

Regarding the unintended acceleration, I don't think that would happen. The actual throttle plate would be at less than 75%, but the ECU would think it's time for open loop and give us fueling control. We could clamp the MAF if necessary as well.

But I can see what you're saying... If the ECU sees an open throttle, it would increase the engine speed right? I need to look at the service manuals a bit more...

When I get the chance, the first thing I'm doing is fooling around with the O2 sensors.