Hondata

i have a 99 si with a jrsc dc heder dc catback hollowed out cat aem cold air and as far as i know the rest is all stock my check engine light has ben on since i bought the car in late summer of 02 the codes are reading map, tps, both o2, intake air temp what is causing this to happen the car also idels really rough and bogs somtimes until wot any little bit of info you have could help thanks

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-Andy

> the codes are reading map, tps, both o2, intake air temp

I think you'll need to fix those codes before you have any hope of the car running correctly (to say the least)... probably ECU wires missing or broken when installing the JRSC electronics.