Not on my 2000SE. I have a parallel setup and my idle is rock solid. All the full standalone MS guys around are quite jealous of my idle.

 

Hmmm, what about using a msm ecu in place of my ecu? It should be PNP as they share the same connections and no freaking out?

 

It looks like the harness is near identical. The yellow on 4D is part of the OCV (together with the Violet/Yellow at 4R) with VVT and the signal to the Wastegate control on the MSM.

But changing the ECU on the 01+ means fiddling with the keys/immo IIRC (or this might just be FUD).

But you can still get into the problem of the ECU freaking out since it doesn't anticipate that the signal from the Cam sensor should move in relation to the Crank (does a nonVVT NB start/run with the intake cam advanced two teeth?).
If you could move the cam sensor to read a nub on the exhaust cam wheel (as on the MSM and 99-00, but they use the intake cam wheel) you might be in a better shape. But where and how to make sure you place it at the correct degrees in relation to the crank is another matter.

 

Did you have and did you use A/C? My idle was "almost" rock solid too...until I applied loads. A/C, high beams, rear defroster. It was absolutely fine as long as I was using it in a fuel-only mode. As soon as I took control of the ignition, boooo.

 

Rats, didn't even think about the keys/immo. Does the MSM read the cam at the same spot as the VVT NB's? If so, adj cam gears would reveal whether or not the MSM ecu freaks out with a cam change.

How about this one....the cam rotates two times per crank revolution. Could a device be made to take the crank signal and output a signal twice for every input crank signal? This device would have to be timed to deliver output signals at full retard. In full retard (ocv disconnected), the oem ecu does not freak out. DIY, are you reading this?

 

There is a huge risk that I know nothing about what type of signals the VVTuner sends out.
I came to think that it would be much smarter if the signals coming from the VVTuner was phased to look like cam advanced zero degrees, otherwise the simulated NA CAS signals would look strange too (e.g. at 40 degrees advance).

Disregard as much of the above as you want

 

http://www.patentgenius.com/patent/7...show-next-page

Something like this?

 

I don't think that would work either or if it did the engine would run rough. I did some reading on cam sensors. I assume the oem ecu needs the correct cam angle so it can match it with the correct injection angle?

 

I use A/C all the time... The idle will raise up 200rpm but stays rock solid.

 

Those that running full standalones (brand doesn't matter as long as it controls vvt)...... are you able to change the injector angle? Just curious if the vvt range is enough that could cause fuel pooling in the IM by not changing the injector angle to match cam angle.

 

ms3 = yes.

the injection timing changes with the cam angle.

 

If you decide to sell it, PM me.

 

I am probably going to try a MS before I sell it.

 

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