VVTI question

[hi98gs]

I currently am using an Autronic SM4 unit on my 1uzfe with vvti. The sm4 is controlling timing and ignition. We don't currently have control of the vvti. My question is ....

Does the vvti go into a "limp" mode when we bypassed the ignition and fuel?

If it does, How did you bypass the limp mode?

Will this affect my overall timing at higher RPM?

I have a TT unit boosting at 8-9 psi and only getting about 340 rwhp. Fuel looks good, ignition seems ok any other suggestions?

 

[andrew k.]

http://www.autronic.com/page_files/techdata.htm

Here is a site that might help with the SM4.

 

[rms]

I assume the MAF meter is no longer connected. The Toyota ECU would need to see the MAF or it would probably go into limp mode.

Get the SM4 to control the cam timing. The SM4 can control 2 camshafts with individual feedback. Your local Autronic dealer will be able help with what is required.

 

[hi98gs]

I assume the MAF meter is no longer connected. The Toyota ECU would need to see the MAF or it would probably go into limp mode.

Get the SM4 to control the cam timing. The SM4 can control 2 camshafts with individual feedback. Your local Autronic dealer will be able help with what is required.

My tuner is the local autronic dealer and is working on the cam shaft control. I'll mention it to him about the MAF, maybe when he set up everything, he did not take into account the MAF. Thanks for the help!!