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Trouble code problem 700 1990

IMO, if they (or the website) did not question your FI system type (LH vs Regina) when you ordered, they are about 16 years behind the curve, since the Regina started with the '89 740s, according to the NTK applications list for the 25005 Titania sensor.

If you get an argument, this link may help.

In case my link fails (it's huge URL), here is the relevant text from volvoclub.org.uk ---

The Bendix/Siemens [Regina] fuel sytem models use a different type sensor and it is not interchangeable with the Bosch units.
This sensor does not work with a .5 V reference out of the ECM as does the Bosch versions. This type uses the heater power supply to feed a sensor circuit [resistive element] which responds to O2 level variations. The Bosch type employs an electrochemical reaction and the heater is for stability of the temp (and therefore the signal) and not for the supply of current to be modified and used as output signal.



--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.






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New Trouble code problem [700]
posted by  igtc subscriber  on Thu Mar 2 14:56 CST 2006 >


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