<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by KenP:
I know you'll check your pm.
What's great is they are working with you.
What's sad is GM's over-concern for performance enhancements. Running rich can cause many longterm problems. Humm, TB clogging? Cat issues?
The programmers have it easy, just lean out the engine a tad and BAM! $400 please. Instant performance gains and some may argue MPG increases.
Frankly, it's rather irritating.
</div></BLOCKQUOTE>That is sad & irritating. I trust the lights because they're reading directly from the oxygen sensors each side & they both agree. On the fuel pump they say it shouldn't be needed. You can install it if you want to but they don't think it will be necessary with the injector size they recommend.