I have been posting in alt.autos.volvo. But I thought I would post here as I am still having trouble

> F Murtz wrote:
>> latest symptoms, car is hard to start but after starting goes for 1/4 hour or so then conks out it sometimes starts and idles but conks out when accelerated if I manage to start at high revs the engine runs till I move accelerator or put in gear then it stops.I have tried an other second hand computer , same symptoms.
>>
>> I am having trouble identifying system (to check codes) The engine is a B230F, It has a bosch comp.with these numbers 3547777 0 280 000 935,it has an air mass meter, it has standard looking round can coil and the distributor is on back of cam shaft.
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>> Fault codes on socket 2 are 1:2:3 and 1:3:1 (131 does not seem to mean anything)
>> Fault codes on socket 6 are 2:2:4 and 2:1:4
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>> If it is rex regina this would mean temp sensor and rpm sensor but I am told rex regina does not have air mass meter ???
>>
>> I have changed temp sensor but old one had the same resistances
>> aprox 4k ohms near freezing and 210 ohms near boiling.
>> If it is the impulse sensor (rpm sensor) Where is it and can it be got at.I have changed fuel filter and can hear pump and if I break fuel line it pumps fuel but I have not measured pressure.
>>
>> The temp guage reads half way after warm up and stays there.
>> these engines seems to run very cool and do not seem to have much pressure even when warm you can take cap off oval tank

One problem is which fault code chart do I use do the "Table 1: Bosch LH2.4 and Motronic 1.8 Fuel Injection Fault Codes"? If so the 131 seems to mean rpm sensor.

Its probably a $20 dollar part from a scrappy but in a few other posts similar to this, it might be worth checking out your ignition amplifier. its a little bosch unit and is to be had on ebay new from around £10-£18 for me so ... might be worth a check.

Matt