C4 ZR-1 Technical Postings [Archive] - ZR-1 Net Registry Forums

Looking for Oxygen sensors for my engine (2 replies)
Can I tell if a ZF transmission is for a LT5 via measuring output shaft (8 replies)
A question for the Moderators..... (0 replies)
Poor running (15 replies)
Advice for liners? (4 replies)
GM Techline tech 1 (2 replies)
Drag racing [emoji[emoji6[emoji640]2][emoji640][emoji6[emoji640]1]]1 with stock gears (2 replies)
Looking for diagnostic tools for 93Z (0 replies)
drag racing a 1990 ZR-1 (7 replies)
Need more noise, but got no money (1 replies)
Stuck Throttle? (3 replies)
Clutch Master & Slave Cylinder Replacement (10 replies)
Lifter wear (10 replies)
DRM EEPROM in my new ZR1. Any experts? (4 replies)
90' Intermittent power - Spark problem (13 replies)
Dreaded Upper Cam Chain Guide Failure (17 replies)
Rear Hatch Weatherstripping - Recommendations? (5 replies)
Nylon drain plug washer? (3 replies)
1990 no start issue (13 replies)
Oil Pressure Sensor (3 replies)
Recommend NOT Buying/Using FVP Brand Water Pump from RockAuto (6 replies)
Question on Sound Deadening Material for Interior (22 replies)
Towing the ZR1 (7 replies)
Tire Cupping on the ZR1 (8 replies)
Wheel hop issues (9 replies)
Coolant tank emitting faint smell? (5 replies)
Anyone Used ZR1ECM? (4 replies)
Slave cylinder piston (6 replies)
Stainless Braided Flex Lines (11 replies)
Anyone changed their injectors themselves? (17 replies)
DRM custom FX3 controller. Anyone remember these? (16 replies)
Motor Mounts Brand on Amazon? (2 replies)
Knocking sound and disconnected hose, Help! (7 replies)
Connecticut Mechanic? (RI, MA, NY) (4 replies)
Interior panel location? (2 replies)
High/Hanging Idle (28 replies)
Front Brakes Locked - Seeking Advice (13 replies)
Brake Booster Check Valve (2 replies)
FX3 system showing all codes.... what? (5 replies)
Full power all the time? (8 replies)
C6Z06 brake upgrade, but issue with handbrake able 🤦*♂️ (1 replies)
HP Tuners Core ECU (0 replies)
I think I?m in deep 💩 (23 replies)
Scan tool (6 replies)
Fires then dies. HELP (32 replies)
Help (3 replies)
Hard brake & fuel lines for 93 (0 replies)
My first (and last I hope !) backfire (14 replies)
Crank No-Start/Idle 91 ZR-1 (18 replies)
FX3 upgrade from 1990 to 1992 (7 replies)
90 stalling issue solved (5 replies)
Bringing the Champ back to fighting condition (8 replies)
Seat die and carpet repair (2 replies)
Is "shift" light in the ECM tune somewhere? (4 replies)
Oil Change Frequency (3 replies)
1990 ZR-1 rattle underneath (2 replies)
Ash flakes coming from exhaust (3 replies)
C4 ZR-1 Coolant Problem (10 replies)
Body Question - Are Rocker Panels same as regular 1992 C4? (5 replies)
more info on frame sensors (4 replies)
Time to remove/replace Stainless Works headers? (13 replies)
Testing AC clutch with intake on??? (6 replies)
crazy oil temp reading after sensor change (1 replies)
Camshaft cover (1 replies)
Dulso removal problems (7 replies)
AC Clutch Replacement 1991 (2 replies)
90 ZR-1 Muffler End Tread Size (4 replies)
What thread is the fuel rail where the Schrader valve connects? (3 replies)
Horn problem. (8 replies)
Crumbling wiring on sending unit (0 replies)
ECM ? (2 replies)
Besides AFR/Lambda, what gauge do you wish you had? (7 replies)
Replacing the FPR and injectors ? (8 replies)
High Pitch Whine or Squeal at Start-Up (4 replies)
About Custom LT5 builds (5 replies)
1990 3rd brake light bulb replacement (6 replies)
What vaccum line is this? (8 replies)
How to reset FX3 cod eon 1994 ZR1 (2 replies)
Oil Leak - Breather Box (1 replies)
Stumble when accelerating (0 replies)
Any leads on Denso 053660-7061 plunger kit? (0 replies)
1991 ZR1 - Rack and pinion assembly (10 replies)
Thermostat Install Tips Helped (1 replies)
rear hatch operation 1990 (2 replies)
Challenges setting minimum idle air. (22 replies)
Air Pump Hose - Slides Off (1 replies)
advice? (9 replies)
Hood Stuck Driver's Side (6 replies)
Aluminum cleaner -product recommendation (0 replies)
Damage to front bumper (5 replies)
Headlight Fuse (1 replies)
ODB Error Code Reader (0 replies)
Replacing main bearings (4 replies)
ADS Superchip (12 replies)
Stalling at quick stops (5 replies)
Best sounding cams (19 replies)
How many gallons of gas when at "reserve" marker? (9 replies)
ZR-1 Oil Change (16 replies)
Can?t install spare tire carrier. What?s this in the way? (9 replies)
1994 Power steering leak. Anything unique to know? (2 replies)
1992 Upper Radiator Shroud Removal (32 replies)
More BMCB BIN spelunking. A few unknown addresses with changes. (3 replies)
1990 Blend door/heater core box replacement (0 replies)
Maintaining factory wiper blades (2 replies)
Engine noise- stuck lifter? (44 replies)
Power washed engine bay. (2 replies)
Electrical question: is this supposed to be here (15 replies)
Air Filter Cover (3 replies)
Cam Emblems Adhesive (7 replies)
Code 61 with secondary system removed? (39 replies)
Buffing Compound on front spoiler (2 replies)
Bought Valvoline VR1 20-50 (4 replies)
RH cam chain tensioner (2 replies)
Swapping in a quicker ratio rack: who has done it? (4 replies)
r12 to r134a conversion question (2 replies)
Racetronix Injectors - any good? (6 replies)
High idle (10 replies)
Help with code 43 and 55 (11 replies)
reading O2 sensor from Tech1 - AFR concerns (4 replies)
Radio will not work (10 replies)
1990 AC question (11 replies)
Recommended ZR-1/C4 shops in Twin Cities MN? (0 replies)
O2 cross counts. How close should they be? (0 replies)
Radiator Cap (7 replies)
Tire pressure sensors (13 replies)
HVAC control unit issues (2 replies)
Any reliable corvette shops in the CA bay area? (12 replies)
Reinforcement Spring in Engine Coolant Hose? (1 replies)
Driveshaft removal for speedo gear swap. C-Beam out or not? (11 replies)
Is there a $F0 source/assembly file anywhere? (18 replies)
Rear End, Suspension clanking/slap noise (0 replies)
starter rebuild kit (12 replies)
Goodyear F1 vs Michelin Pilot Sport All Season 4 (11 replies)
Horn won't blow (7 replies)
Help with no start PLEASE. (5 replies)
Reading $F0 chip from '94 resulting in bad file? (6 replies)
Help with FX3 actuators/faults (5 replies)
Code 12 Issue (3 replies)
LT5 drivetrain (1 replies)
Solution for B&B Exhaust Drone? (17 replies)
Secondary fans (0 replies)
Front Crank Seal (5 replies)
Tire Size (3 replies)
AC expansion tube install (0 replies)
Seatbelt retractor issue (7 replies)
Buzzing sound at low RPM?s (0 replies)
Cam Position Sensor Removal (3 replies)
Tachometer Issue (1 replies)
Low level LCD Display 90s (10 replies)
Best weatherstripping (5 replies)
Fuel Pressure Problem (7 replies)
Heat gun to repair license plate frame? (5 replies)
Stranded on a road trip, '90 ZR-1, no crank (29 replies)
Oil Gauge Issue (2 replies)
No crank no start (3 replies)
Battery fully charged but no crank (5 replies)
Any Idea what that noise is? (9 replies)
Oil Pressure/Gauge Question (2 replies)
Oil leak (12 replies)
AIR System questions? (3 replies)
Rear Differential Torque Spec (1 replies)
Manuals, docs, tools, etc. for a new ZR-1 owner? (12 replies)
Knock Sensor 1995 ZR1 (6 replies)
Secondary Port Function (7 replies)
Heater hose return fitting replacement (15 replies)
Rear Differential Gear Swap (13 replies)
Timing chain popping after timing procedure (4 replies)
1990 ZR-1 Aftermarket Radio not working (5 replies)
Spring guidance for a 1990 ZR1; FE1 = FHA? From England, GB (15 replies)
So Cal ZR-1 Service Shop?? (4 replies)
Horsepower difference ? (14 replies)
Bose replacement speaker chassis? (8 replies)
Spark Plug Wires (0 replies)
SYS Light on Dash (3 replies)
Rear Leaf Spring Replacement (3 replies)
Dam serpentine belt (6 replies)
Oil in Plenum (4 replies)
Oil Filter Question (4 replies)
Leaking Pinion Seal (2 replies)
Matching Numbers? (0 replies)
Air Conditioning Compressor Clutch availability (19 replies)
New engine whistle/whine (10 replies)
Fuel leak somewhere (7 replies)
HIGH idle (2 replies)
Stalling sometimes at stops? (13 replies)
FX3 expectations, general questions (4 replies)
INFLREST; I've replaced front impact sensor 3 times (7 replies)
1990 ZR1 charcoal canister (2 replies)
Recommended plugs for a 1992? (1 replies)
1993 #379 First Issue: LTPWS Sensor Question (3 replies)
02 Sensors (4 replies)
New replacement windshields (44 replies)
Winter projects (15 replies)
Center Cap mm question (0 replies)
TPMS (4 replies)
AC Compressor Shutting Off (1 replies)
Engine knock (6 replies)
1991 #614 back from grave but no start, cranks just fine (9 replies)
Where to get header gaskets near Southern Indiana quickly (6 replies)
1990 AC Compressor Clutch Connector (1 replies)
Heater Core replacement DIY (9 replies)
Fuel gauge inaccurate (4 replies)
Relocating the DIS module (2 replies)
Weird occurance... (5 replies)
95 Slave Cylinder Replacement Cost (4 replies)
Replacement Windshield Info (10 replies)
'90 blower control module (2 replies)
No start help!! (7 replies)
Antenna Issue After Pulling Radio Fuse (1 replies)
Need Help Please (6 replies)
Anyone here in the Southeast region that can work on a ZF6 (0 replies)
Wiring Questions. Are The Positive and Negative Battery Cables ZR-1 Specific? (3 replies)
Blue/Black ZF6 labels (9 replies)
New A/C System (2 replies)
Limits of stock LT5 with boost? (12 replies)
200 amp Alternator for A/C (3 replies)
c4 zr1 wheels on a c4 gransport (4 replies)
Temp goes from 200 to 225 when A/C is on (11 replies)
Mediocre A/C (12 replies)
cruise control drops out (6 replies)
Leaky Ram clutch (4 replies)
crunching noise (0 replies)
Coil pack swap (7 replies)
ABS Randomly Pumping (6 replies)
While I'm at it, Another Electrical Question (2 replies)
Another Engine Temp Question (1 replies)
A/C stopped working (6 replies)
LT-5 Electrical Issue (6 replies)
Driveline Noise at Highway Speed (1 replies)
Calling Pete Polatisis (2 replies)
Anyone using urethane motor mounts? (10 replies)
Question on Engine Temp (17 replies)
TPS problem (6 replies)
Cruise control issues (5 replies)
Pressurizing oil procedure ? (6 replies)
Rear Hatch Struts (4 replies)
Air Con Pressure Cycling Switch 10007057 (4 replies)
Another poor airflow out the HVAC vents thread (4 replies)
rear tie rod end on 91 (0 replies)
Weird Noise (0 replies)
Infinity Lube (5 replies)
Jagdpanzer 427 LT5 build (4 replies)
Injector not opening (2 replies)
'90 ZR-1 brake refurbish options (57 replies)
1995 ZR1 Power Steering Cooler (4 replies)
Help with this part (2 replies)
Clutch Pedal Starter Relay By-Pass Instructions (3 replies)
Removing tight hydraulic line from slave cylinder (11 replies)
Speedo light on start up immediately goes out? (5 replies)
Ccm location and steps to get it (2 replies)