Question about Cars & Trucks
I have a bmw 325i my service lite came on after i put in premium gas after using 87 for a year would that cause the code to come up i reset the lite and drove the car to boston and back and the lite did not come back on i was also down a quart of oil witch i put in . the car runs great did not use any more gas than i normaly do . can u help me
That code is for mixture adaptation lean. That means that the computer is getting the air fuel mix sorted out. Which could be partially attributed to the higher octane fuel. Typically it means there is an air leak in the induction system (intake manifold, air pipe after the Mass air flow sensor, or a vacuum hose or system) Check all connections on hoses and things under the hood. Make sure your gas cap is on tight. Take the car somewhere like Autozone and have the code deleted and see if it comes back. If it does, take it to the shop and have it checked out.
Posted on Nov 18, 2013
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Posted on Jan 02, 2017
The check engine light could be any number of things and the only way to find out is have the codes scanned. The brake light issue is common on E46 3 series. It is an issue were the brown ground wire that goes into the lamp housing melts at the connector causing a loose ground connection. The connector needs to be replaced and also add additional grounding wires to prevent further issues. And for fuel additives either use the cheveron techron, or the bmw fuel additive(the bmw stuff is the exact same thing, so just use which ever is cheaper).
Posted on Mar 12, 2009
Code PO340 "Camshaft Position Sensor Circuit Malfunction". Now that does not mean that if you simply replace the sensor your problem will be solved. It can be simply loose, cut, or corroded wiring. It can also be something entirely different. This is where diagnostic skills come in.
Posted on May 01, 2010
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