Thread: Pulsing / Pulsating Exhaust

Hello,

Got an engine put into my car so it's running again. I notice that my exhaust is pulsing, like vroom...vroom...vroom (maybe every second or so). I don't see the tach going up or down. What could be the cause?

Thanks!

Matt

that missing pcv hose maybe......or maybe you got two plug wires crossed up, it happens to the best of us.

okay, I'll check for that PCV hose when I get home. I'll check the plug wires as well. If plug wires were crossed, wouldn't that cause a misfire?

ok, wires are good as it's not misfiring to my knowledge. And my knowledge is when the CEL flashes lol. Car's running pretty good I believe. Seems to be running rich, but I met someone on the dreaded 3800 performance facebook group that lives by me and he's going to help me tune it.

I wouldn't trust 99.9% of the people on those boards...last I remember they have ol' Z-Tune Zack Howard helping run those pages.

As for the "idle surge" you seem to be having...any video of it? Stock cam?

I will take a video of it. Yes, it's a stock cam. Yea, I much prefer this forum to that page. Seems people here are more knowledgeable.

Sgt - I haven't bought a tuner, but he has one. Said I could use it if I pay for credits.

The guy I met seems to know what he's doing, he's got a badass Riviera, pretty quiet on the page though.