Oil prices appeared to be headed ever upward 15 years ago, and many in the industry wondered what kind of change that might trigger in vehicle fuels around the world. In Italy, Magneti Marelli's ...

An exhaust air fuel ratio sensor (A/F sensor), which is applied to a 1997 model year LEV vehicle was developed. This sensor enables the detection of the exhaust gas air fuel ratio, both lean and rich ...

How Do I Dial In The Right Air/Fuel Ratio For Today's Oxygenated Fuels Using A Wideband O2 Sensor? Q. I am installing a wideband oxygen sensor and am curious about what A/F (air/fuel) ratios to aim ...

Owners of 2007-09 Honda CR-V models may come into your store with the Check Engine light illuminated and one or more of the following trouble codes stored in PCM memory: P0134, P0135, P0171 and P1157.

Back in the Fox days, the most common method of tuning was to increase timing until detonation, and back it off a couple degrees. Like Fox cars, that method was crude, but a dyno wasn’t on every other ...

M. Schütte, H. Finke, G. Grünefeld, S. Krüger, P. Andresen, B. Stiebels, B. Stebels, B. Block, H. Meyer and W. Hentschel Single-cycle air-fuel ratio (AFR) and residual gas content of the fresh charge ...

When [Robot Cantina] isn’t busy tweaking the 420cc Big Block engine in their Honda Insight, they’re probably working on some other completely far out automotive atrocity. In the video below the break, ...

Silly me. For the longest time I thought “Stoichiometric” was the name of some hockey player from Quebec, or a small village in Russia. Well, it turns out stoichiometric is a really important ...