TVS900 Basics

[Mendra72]

Paul -assuming Jan (probably can) program the stock ECU to run with the TVS - the two issues I see are - the water pump control (external controller would solve this) and it must be programmed to allow at least 1 full throttle pull through the gears - 1st 2nd for e.g. - The ecu MUST see a full throttle pull to set the Comprehensive component monitor. You also have to factor in what camshaft you are using when you put back in the stock ecu- the stock ecu doesn't like Jan's more aggressive camshafts and will throw a misfire code when idling - which of course will result in a fail or having to clear all your codes.

I know this because in March when I was having my inspection done - I didn't know I had to swap back the stock map sensor. The ECU showed a lean code and of course I failed. After clearing it and swapping the map sensor - it would set everything except the CCM readiness. I did a ton of reading and came up on the fact that it needed the full throttle pull to set that monitor. However I had a map on my stock ECU that was tuned to run meth, so I couldn't do a WOT pull. Once Jan flashed in a stock JCW map - I did the pull (it felt so slow) and presto all the readiness monitors were set.

(05-11-2015 11:27 AM)BlimeyCabrio Wrote:  This is REALLY good info. Thanks Jan and Mendra.

My only remaining concern is how the car will behave with the stock ECU and the TVS installed (plus everything else).
Whether I'll be able to drive it for an hour or two (at low RPMS) to get all the self-test stuff to pass, without throwing any codes (which must be cleared, then start all over again).

P

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Jan - like Shanne - I was able to do it once - if the car completes a couple drive cycles -it will not accept the stock ecu unless the EWS gets reset. I am unsure why it allowed me to do it the first time - I have never tried the swap with the battery disconnected - only with the key out of the car.

(05-11-2015 10:21 PM)Shanne Wrote:  Jan I was never able to put my stock ECU back in also....I was able to do it once, then never again. I also would change the ECU only with the battery disconnected.

(05-11-2015 10:38 PM)ColinGreene Wrote:  The ews figures it out.