Slight hesitation at 2,000-2,500 RPM with power key on - Page 2 - ZR-1 Net Registry Forums

Johnny5 · 02-05-2016

I heard a few members talking about this issue at Carlisle and Heibeck said to check the 02 sensors.

Vette73 · 03-10-2016

Quote:

Originally Posted by tnova

Same problem with my '91. Have ported plenum and aluminum flywheel as main driver for Marc's chip. Been all through the common causes; fuel pumps, secondary activation, secondary FI relay, new 02 sensors, new coils, etc., etc. Will be watching your findings.

I swapped out my ignition wires today it seems to have solved the problem...I got car warm ( was 76 today in NY) and got no hesitation...

Maybe too early to tell but so far the wires seemed to help...

lisounds · 03-10-2016

:thumbs: Awesome simple fix

02-05-2016	#11
Johnny5 Join Date: Nov 2014 Location: New Jersey Posts: 363	Re: Slight hesitation at 2,000-2,500 RPM with power key on I heard a few members talking about this issue at Carlisle and Heibeck said to check the 02 sensors.

03-10-2016	#13
lisounds Join Date: Jan 2011 Location: Long Island, New York 11542 Posts: 145	Re: Slight hesitation at 2,000-2,500 RPM with power key on :thumbs: Awesome simple fix __________________ 1995 ZR-1 Red / BLACK NCRS NATIONAL WINNER DAVE HILL AWARD TOP FLIGHT & PV AWARDS Currently in my Stable: 1978 PACE CAR L-82 4SPD "Triple Crown Winner" 1979 TRANS AM Bandit Edition 400 4 spd WS6 Y84 W72 1981 PORSCHE 930 TURBO 1995 ZR1 Red / Black 2004 Z06 Yellow / Black 2010 C6 Grand Sport Convertible Red/Black