Intermittent Code 61 Ideas - ZR-1 Net Registry Forums

GOLDCYLON · 04-12-2010

Hi there GC needs a little help. I getting an intermittent SES light that wont hard set but always leads back to a code 61 (Secondary port throttle system error). Would a bad or non working vacuum pump cause this issue? It happens the most of the time when the Cruise control is set and the car has to pickup speed in 6th gear. As the car has to accelerate the SES light will illuminate and when the car levels off in terrain the light goes away. Im reading the troubleshooting section of the FSM and it appears when the Vacuum secondary actuators lose pressure that the ECM commands the air pump to kick in to compensate.

From what im reading either one of these actuators are suspect, as is a check valve, Air pump, secondary port actuator and the tubing. Asking if anybody else outthere has seen this repeat symptom. Is there a check for just the vaccum pump. I dont know if it ever comes on as my fans race on almost immediately in my car due to the prom setting. Just looking for ideas and any been there's and done thats. out there Thanks Daryll

04-12-2010	#1
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,120	Intermittent Code 61 Ideas Hi there GC needs a little help. I getting an intermittent SES light that wont hard set but always leads back to a code 61 (Secondary port throttle system error). Would a bad or non working vacuum pump cause this issue? It happens the most of the time when the Cruise control is set and the car has to pickup speed in 6th gear. As the car has to accelerate the SES light will illuminate and when the car levels off in terrain the light goes away. Im reading the troubleshooting section of the FSM and it appears when the Vacuum secondary actuators lose pressure that the ECM commands the air pump to kick in to compensate. From what im reading either one of these actuators are suspect, as is a check valve, Air pump, secondary port actuator and the tubing. Asking if anybody else outthere has seen this repeat symptom. Is there a check for just the vaccum pump. I dont know if it ever comes on as my fans race on almost immediately in my car due to the prom setting. Just looking for ideas and any been there's and done thats. out there Thanks Daryll __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V Last edited by GOLDCYLON; 04-12-2010 at 05:12 PM.