|
The Wur I have is the vacuum type. Is this correct for '80? Is there a reference for part numbers that anyone knows of so I can match this guy up?
Were these warmed sensors already, or is this a doable upgrade when I install?
My advice is to first determine what was done to the engine during the conversion. There is a part number on the WUR and you can find the correct number on a BOSCH website and by searching here. Also verify the engine number, fuel distributor, ignition distributor and fuel pump type. A hose to the WUR does not always mean vacuum, it is probably a vent line, unless it was changed. The vacuum lines are often mixed up on later cars, it is best to know what the device does and why it needs ported or manifold vacuum or a vent, before working on the engine .
After you determine what you have, you can figure out what it would take to put it back to the way it was designed to be. If you want closed loop feedback control, you will have to drill a hole in the exhaust and fit a threaded bung for the O2 sensor. If you need to buy new parts, this may be an expensive proposition, you may be better off buying a complete used system with ECU and harness from a carb swap owner. The 81-83 system is better, but the main difference was to reduce the EPA warm up cycle emissions and the add ons help cover up the leaner calibration. You are already without a cat and the benefits would be small.
Paying for a single dyno run with an AFR curve would tell you how well your current setup is working.
I don't know what you mean by "warmed sensors"
__________________
Paul
|