i have an 89 crx dx with an si head, still dpfi. wiretucked and thats about it. i went on my lunch today from work, car running fine. i turned it off, ate and started it back up and now it runs like complete ****. its throwing codes 5, 6,10,13. somebody suggested that its the map sensor throwing them all off. how would i go about testing to see if the map is actually working? and any suggestions would be great, thanx