The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

mopar346 · 08-30-2012, 09:59 PM

The pulse is constant and quick, it almost appears continous but it is detectable if you stare at it. I would check the O2s and install a 3 wire (pre-heated) if you don't have one.

08-30-2012, 09:59 PM	#3
mopar346 Registered User Join Date: Jan 2011 Location: Quincy, FL Posts: 533	Re: 89 454 tbi problems and ?'s The pulse is constant and quick, it almost appears continous but it is detectable if you stare at it. I would check the O2s and install a 3 wire (pre-heated) if you don't have one.