ecu codes?

[briandaley]

I have a nissan 240sx with a sr20det. The ecu is throwing three codes. 11, 12, and 54. I don't know what is wrong with it. When I rev up high it misses and it also misses at idle. I just really want to know what I can do to fix it. All the parts those codes could be are expensive so hoepfully someone will have a better answer then a new cam position sensor.

[blueis300]

http://www.240sx.org/faq/articles/ecmcodes.htm

code 11 crank angle sensor

code 12 air flow meter circuit

code 54 not sure

The code 12 could be a bad maf? you could use a special electronics cleaner you can get from pepboys or radio shack to clean it but that probably wont solve all your problems.