Finishing up my swap and need some help.

[low91]

After you fix your header interference problem...You should somehow get a heat barrier between the exhaust & the transmission/linkage, etc. Its way too close in my opinion.

Yeah It is pretty close. I've been driving it for about a week now so I should probably check the boot out to make sure its not melted. I'm going to pull the exhaist and paint it in the next few weeks whenever I get the new exhaust welded up, I was planing on wraping a few feet back with header wrap.

[Botlfed]

theres a whte wire in the pcm use that one.

[low91]

theres a whte wire in the pcm use that one.

I tried that one and even hooked up an aftermarket tach and still nothing. From what I've read on here the 5.3l PCM puts out a different signal than what my tach needs.

[RedHeartbeat]

I used a BakerElectronix.com tach adapter in my 92 truck to use the factory indash tach. You may just have a bad connection if neither tach will work. A newer tach should work just fine without a converter. You have to get the tune setup for the factory tach or buy the adjustable adapter.

[low91]

Well I'd like to avoid using a tach adapter if I can. I want to keep things as simple as possible. I've found a guy localy that programs PCMs so what signal would I have to have it changed to for a 95 guage cluster tach?

[7two]

Found this when I was cruising the net. May be your answer for a cheap easy fix on your tach...

[7two]

Tach wiring for 99+ Vortec/LS1

[low91]

Tach wiring for 99+ Vortec/LS1

Good info. I was thinking about switching to all aftermarket gauges anyway so this would be an easy fix. It states that the pcms tac signal wasn't strong enough, but I though the problem was that the pcm put out a different signal?

[93blackbeast]

Sorry to dig this back up, but did you ever get your tach working? I know how to fix it if you didn't.

LMK.

Thanks,

Cody B.