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RWD - ECU issues

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ECU issues 200 1993

There should be a wider range of voltage cycling on the O2 sensor, .2 - .9 volts yours may be tired!. You can buying for a mustang (Bosch 13913) and solder on the Volvo connector for about $40. They work fine and you may be able to find them on ebay for less.

You can guesstimate fuel pressure by seeing if you can pump a quart of gas at the rail in less than 30 seconds it's probably OK. Disconnect the hose at the rail and pump into a milk gallon container.
Dan






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New ECU issues [200]
posted by  tedv  on Tue Sep 3 15:11 CST 2019 >

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