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Please install the bypass jumper.
Your car may or may not need a radiator or other components. However bypassing that compensator board with a short wire is - in my humble opinion - a required project for these cars. I do it on ours whenever we buy one. I don't wait for the driving family member to call me in a state of alarm.
It's quick to do, and then you have a temp gauge you can count on. It will be informative, going up a bit on upgrades and down a bit on downgrades, if you watch it.
The comp board was added by Volvo when US drivers complained of temp gauges going up and down. They were used to idiot lights on USA cars. the board's job is to stabilize the needle, turning it into a moving-arm idiot light. Unfortunately the comp board likes to fail, giving high readings.
If you use the push-on wire method, I recommend 16 ga. wire. The insulation sleeve is big enough to go over the pin.
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Sven: '89 245 NA, 951 ECU, expanded air dam, forward belly pan reaches oem belly pan, airbox heater upgraded, E-fan, 205/65-15 at 50 psi, IPD sways, no a/c-p/s belt, E-Codes, amber front corner reflectors, aero front face, quad horns, tach, small clock.
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