Question about 1991 Volvo 940
code 204 is 'injector circuit cylinder 4'
U may want to bring it to another mechanic to have the problem checked. good luck, let me know how u make out.
Posted on Dec 15, 2008
if you can buy a different car do it. this volvo is old and it might start to have weird electrical problems that may be hard and expensive to fix. Has it been running ok now?
Posted on May 07, 2009
SOURCE: speedometer erratic/intermittent
I don't know what is causing this problem, but I know phil140701's answer is completely wrong on two counts. First, 740 Volvos starting at least in 1986 have electronic speedometers and no cable. There is an electronic sensor on the differential which sends a signal to the speedometer cluster. Second, if it were strictly mechanical with a cable then the voltage regulator could have no effect on it at all.
Posted on Sep 01, 2009
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