Hi there, a newbie here, knowing Volvo's 120-140-240-740-940-S90looking for a solution, got two cars16Vand a 740 Autmo. B230F 8 Valve, both wen cold on three spark plugs, warm no problem.

Did seek......I thinck its computer......not sure.. can't replace one, don't have it know, and the 16V(549)is not easy to find.

Thanks for any idea's, Raymond.