Having problems with your 1992 Oldsmobile 88 Royale ?

92 oldsmobile 88 royale check engine code 55

\015 My wife's car wont start. I've checked the codes and it shows code 55 along with others. The car will act like it is going to run when there is pressure on the throttle or the throttle body pins. Once the pressure is released the car will immediately die. In the past two weeks, I've changed the tps sensor, knock sensor, thermostat, oil, oil pan gasket, fuel filter, oil filter, and performed a radiator flush. I've read other post from other sites that have mentioned the egr valve could be causing the car to die or idle rough. Please help me figure out if this egr valve could be a likely problem. I've already had a mechanic get stumped by this car. Also additional information, the mechanic says that the battery, alternator, and starter are working fine since there is power and the car acts like it is started.\015 Posted / edited by AnonymousUser on : 02-08-2021

Answers :

Check the Mass Air Flow Sensor, you can get a can of cleaner specific for cleaning them for a couple bucks at the parts store. I'd just get 1 and clean the sensor see if that works. The MAF sensor is either in the throttle body itself (bolted on from the outside or in the air line between the filter and throttle body. That could be the whole problem right there. Good luck.
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