(95 obd1 h22 in a 2000 civic si) i got code 5, (map sensor mechanical), it boggles when i start it (no CEL) and after 1-2 minutes CEL comes on. my map sensor is hooked up, any hints/ help?

 

check the wirings. See if the wires are securely connected. And maybe it could be a bad map sensor. Try switching it out with another map sensor. Also check your vacuum hose from the map to the intake manifold. make sure its secure also.

 

thanx, all good now. (vacuum lines)

 

I'm having the same problem but the only difference is that my MAP sensor doesn't use vacuum lines, I exchanged sensors with my Integra and it doesn't shows any signs of improvement!

Please help!