Are there any worthwhile sensor upgrades for TBI engines? Such as:

* LT4 knock module (anybody doing this with good success?)
* LT1 IAC sensor (any difference other than harness plug?)
* other 1-bar MAP sensors that perform better in any way?

I have the EBL Flash, so if you know of anything that can help it record better data, please do chime in. So far I haven't come across anything really helpful. But, if there is a thread that speaks of the things I listed, please do post the link if you have it.

 

Oh, and I didn't cover IATs. I guess they are aka MATs? At any rate, some are using CTSs as IATs/MATs and they seem to do the job. But, what I understand is every IAT is basically the same. As long as you have the harness plug, you can use any GM IAT.

 

Ok. I did some more research and pretty much found nothing.

Use the bird cage style IAT for faster temp updates than the screw in style. Using a differnet IAC probably will have no benefit. The LT4 knock sensor is a decent 'upgrade', but not essential.