Engine Smog system Q

7upmustang said:

Thanks for the insight.
Previous advice in this site mentioned:

“The best thing to do is to put a cap on the diverter valve or plug in the hose where it comes off the diverter valve to the crossover pipe.”

this was to avoid having “smog pump air to pass into the heads or the hpipe,if converters are no longer present,because the extra air might get measured by the O2 sensor's,causing a lean signal.”

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General karthief said:

You can buy the air injection pipe from rockauto new.

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