Thread: l67 l32 block differnces? engine ideas

Originally Posted by fedxideliver

146000 miles and it was the zzp 1.0 tune my af ratio gauge was rich when it happened and 0 boost

Wideband or narrowband?

It may have developed a stress crack sometime earlier and finally went, i've seen that before.

The 1.0 pcm is really only tailored to those certain mods, i would get a custom tune or a mail order tune since you have the ability to scan.