Refresh 1982 crossfire vette

the gauges should come with detailed installation instructions, matching sensor/sending units
and most gauges require a good frame ground and a proper 12 volt power source.
do you have a decent multi meter?

yeah only the upper code reader works on the 1984 vette, but the multi meter will be helpful if you have a FACTORY SHOP MANUAL
304754.main.jpg

57662_W3.jpg




Sensor


Measured Value
Engine Coolant Temperature Sensor. 185 Ohms @ 210F, 3400 Ohms @ 68F, 7,500 Ohms @ 39 F.
Engine Oil Temperature Sensor. 185 Ohms @ 210 F, 3400 Ohms @ 68 F, 7,500 Ohms @39 F.
Oil Pressure Sender/Switch. 1 Ohms @ 0 PSI, 43 Ohms @ 30 PSI, 86 Ohms @ 60 PSI.
Fuel Quantity Sender. 0 Ohms @ Empty, 45 Ohms @ 1/2 Full, 90 Ohms @ Full.
MAT (Manifold Absolute Temperature Sensor). 185 Ohms @ 210 F, 3400 Ohms @ 70 F, 15,000 Ohms @ 40 F.
Outside Temperature Sensor. 4400 Ohms @ 60 F, 2200 Ohms @ 85 F.
In Car Temp Temperature Sensor. 4400 Ohms @ 60 F, 2200 Ohms @ 85 F.
MAF (Mass Air Flow) Sensor. .4 Volts @ idle, 5 Volts @ Full Throttle.
Oxygen (O2) Sensor. .1 Volt Lean Mixture, .9 Volt Rich Mixture.

TPS (Throttle Position Sensor). .54 Volts Idle, ~ 5 Volts Full Throttle.

Sensor Locations



Engine Coolant Temperature Sensor. Front of engine, below Throttle Body.
Engine Oil Temperature Sensor. Left rear of engine, just above the oil filter.
Oil Pressure Sender/Switch. Top, left hand rear of engine.
Fuel Quantity Sender. Top of fuel tank, beneath filler pipe escutcheon panel.
MAT (Manifold Absolute Temperature Sensor). Underside of manifold air plenum at rear.
Outside Temperature Sensor. Right side of engine, top right corner of radiator.
In Car Temp Temperature Sensor. Coupe: above left seat near interior courtesy light, Convertible: center of cargo compartment lid.
MAF (Mass Air Flow) Sensor. Front of engine ahead of throttle body.
Oxygen (O2) Sensor. Left side of engine, in exhaust pipe.
TPS (Throttle Position Sensor). Right side of throttle body at the front.
 
Last edited:
the gauges should come with detailed installation instructions,
and most gauges require a good frame ground and a proper 12 volt power source.
do you have a decent multi meter?

I do have a multi meter, I put the cluster more or less in place. the other gauges work??
 
use the info to locate and accurately measure the sending unit or sensor ohms/voltage ETC ,
to verify it matches the factory norms as a first step, in resolving the guage issue
 
use the info to locate and accurately measure the sending unit or sensor ohms/voltage ETC ,
to verify it matches the factory norms as a first step, in resolving the guage issue
Okay, but how do you make the gauge read correct???
 
if BOTH the sensor output matches the factory specified voltage or resistance in ohms
and
the gauge matches the sensor, the gauge should
read correctly
 
Have the specs of the new guages been verified to match the sensors used?

Has the wiring been double checked as no wires are reversed?

Are these budget China Guages or known brand guages with customer service?
 
if BOTH the sensor output matches the factory specified voltage or resistance in ohms
and
the gauge matches the sensor, the gauge should
read correctly
This maybe too simplistic, but, I take a ohms reading and then set the pointer to the reading??
 
Sensor


Measured Value
Engine Coolant Temperature Sensor. 185 Ohms @ 210F, 3400 Ohms @ 68F, 7,500 Ohms @ 39 F.
Engine Oil Temperature Sensor. 185 Ohms @ 210 F, 3400 Ohms @ 68 F, 7,500 Ohms @39 F.
Oil Pressure Sender/Switch. 1 Ohms @ 0 PSI, 43 Ohms @ 30 PSI, 86 Ohms @ 60 PSI.
Fuel Quantity Sender. 0 Ohms @ Empty, 45 Ohms @ 1/2 Full, 90 Ohms @ Full.
MAT (Manifold Absolute Temperature Sensor). 185 Ohms @ 210 F, 3400 Ohms @ 70 F, 15,000 Ohms @ 40 F.
Outside Temperature Sensor. 4400 Ohms @ 60 F, 2200 Ohms @ 85 F.
In Car Temp Temperature Sensor. 4400 Ohms @ 60 F, 2200 Ohms @ 85 F.
MAF (Mass Air Flow) Sensor. .4 Volts @ idle, 5 Volts @ Full Throttle.
Oxygen (O2) Sensor. .1 Volt Lean Mixture, .9 Volt Rich Mixture.
TPS (Throttle Position Sensor). .54 Volts Idle, ~ 5 Volts Full Throttle.

Sensor Locations


Engine Coolant Temperature Sensor. Front of engine, below Throttle Body.
Engine Oil Temperature Sensor. Left rear of engine, just above the oil filter.
Oil Pressure Sender/Switch. Top, left hand rear of engine.
Fuel Quantity Sender. Top of fuel tank, beneath filler pipe escutcheon panel.
MAT (Manifold Absolute Temperature Sensor). Underside of manifold air plenum at rear.
Outside Temperature Sensor. Right side of engine, top right corner of radiator.
In Car Temp Temperature Sensor. Coupe: above left seat near interior courtesy light, Convertible: center of cargo compartment lid.
MAF (Mass Air Flow) Sensor. Front of engine ahead of throttle body.
Oxygen (O2) Sensor. Left side of engine, in exhaust pipe.
TPS (Throttle Position Sensor). Right side of throttle body at the front.

your gauge reading should show what the sensor says it should in these charts :like:
 
Fuel Quantity Sender. 0 Ohms @ Empty, 45 Ohms @ 1/2 Full, 90 Ohms @ Full.
provided the sensor is working correctly

39 ohms equals about a bit lower than 1/2 a tank volume
 
Fuel Quantity Sender. 0 Ohms @ Empty, 45 Ohms @ 1/2 Full, 90 Ohms @ Full.
provided the sensor is working correctly

39 ohms equals about a bit lower than 1/2 a tank volume
39 ohms that's with the key off, 58 ohms with key off on oil pressure gauge. The old gauges read 85 on fuel and 84.6 on oil that's in my hand.
 
I've never done a 1982 but I've done a 1980, and a 1975, obviously you'll want a decent place to work, 8 decent jack stands and a decent floor jack.
pitfalls a good deal of time and cash, but its not tremendously difficult if you have the cash and time and patience.
youll need the flywheel, clutch, clutch disc, bell housing, throw out fork, throw out bearing, z bar, adjustment rod,shifter, and maybe a new drive shaft, obviously the manual transmission, trans mounts, the different clutch and brake petals, etc.
your going to be far ahead financially if you can find and purchase a non-running donor manual vette with those components car to strip those parts from, and upgrading to a lakewood blow proof bell housing and SFI clutch and flywheel would be in your interest
Id start by finding a non-running vette you could strip those parts from and resell later it will be a huge advantage
personally ID suggest you swap to a 200r4 with a shift kit and a 2800rpm stall converter, as it has, overdrive gears and it will be much faster and easier, and if done correctly and matched to the correct engine the cars likely to be both easier to drive and faster, and done much faster and cheaper,
finding the transmission in excellent condition,at a decent price may be rather difficult, and you'll most likely hurt resale value as few people now know how to drive a manual transmission vette or want too!
Id bet your going to list all the parts and cost and find a swap to a 200r4 is at least several thousand dollars cheaper
with new parts your looking at over $5500 to do the swap to manual.(unless you find a manual donor car to strip)

 
Last edited:
Id start by finding a non-running vette you could strip those parts from and resell later it will be a huge advantage
personally ID suggest you swap to a 200r4 with a shift kit and a 2800rpm stall converter, as it has, overdrive gears and it will be much faster and easier, and if done correctly and matched to the correct engine the cars likely to be both easier to drive and faster, and done much faster and cheaper,
finding the transmission in excellent condition,at a decent price may be rather difficult,
I have two complete 200-4R transmissions that would need a rebuild which should include some HP mods to handle the increased HP/TQ of the Vette. I also have an abundance of spare parts, as I bought out all the 200-4R parts from a trans shop that was closing down.

One pro of the 200-4R is the overall length is the same as a TH350 and the output spline is the same so your driveshaft should not require any changes.

Be sure to also read page 30, there is more info about the parts.

TransPurchaseFromPrecisionMachine_00780.jpg
FP04_CompletedInventory_00940.jpg
FP04_CompletedInventory_00948.jpg
FP04_CompletedInventory_00953.jpg
.
 
Last edited by a moderator:
Back
Top