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-   -   Hrm ECU resets (https://www.miataturbo.net/megasquirt-18/hrm-ecu-resets-5813/)

richyvrlimited 11-26-2006 01:55 PM

Hrm ECU resets
 
I've finally got my TPS to work, except now I think i've buggered something up!

Before I start tearing into my wiring again, I've tepped into, and not cut the stock TPS lines (TPS Ref is red and TPS sig is Red/black)

whenever i've driving if i completly back off the accelerator the ECU switches off until i apply the accellerator. wtf?

it doesn't do this out of gear though.....

I'm sure I'll figure out the problem tomorrow, but just though i'd sound out any ideas here first!

thanks

arga 11-26-2006 10:50 PM

Do you need the TPS ref for anything? If your ECU and MS share the same ground then you should be able to use just the signal. The ECU doesn't like much draw on the 5v TPS ref source.

Not sure why being in gear changes things. Maybe it's a momentary drop and when your in gear your inertia pushes through it. Check logs?

richyvrlimited 11-27-2006 03:31 AM


Originally Posted by arga (Post 59558)
Do you need the TPS ref for anything? If your ECU and MS share the same ground then you should be able to use just the signal. The ECU doesn't like much draw on the 5v TPS ref source.

Not sure why being in gear changes things. Maybe it's a momentary drop and when your in gear your inertia pushes through it. Check logs?

yeah I'd like to use TPS AE and the flood clear mode. plus I'm ---- and If i know something should work, i'd like it to :D

thanks, i'll try snipping the TPS Ref line first.

richyvrlimited 11-27-2006 04:53 AM

Good advice arga, cut the TPS Vref line and everything worked :D

seems strange that the TPS works though, as i'd tried just connecting pin 22 to the line it's currently connected to and it didn't work....

ah well works now, thanks!


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