I've got a 95 civic vx with the check engine light showing code 5 . I've replaced the map sensor twice and reset the cel many of ways and yet the light still comes on. Any other solutions to why it'd still be on?

 

Either there's an open in the wiring or your ecu is bad. Turn the ignition on without starting the car and check for voltage at any of the three map sensor connector pins. Should be 4.5-5 volts on one of them. Then check for ground on one of the other two. If those check out ok you will need to find out which pin at the ecu connectors your map sensor signal wire goes to and check for continuity from the third pin that doesn't have voltage or ground... back to that ecu connector pin.

 

Thank you, Sir. I'll try that after work today and get back with you.

 

i have the same problem man no joke but i dnt have a ohm meter to check it ive also replaced the map 2x but same **** n i believe its causing my car to run rich......i think? can that be a possability? i have friends who build n work on hondas and i know they can fix it but all they want is $$$$$ not much of friends huh but anyways can that be whi i run rich?

 

it's like $8.00 for a multimeter at harbor freight. You can get them at Walmart for about 15 or so.

 

I'm not sure about it running rich... Going to check for voltage at he map sensor plug in a few. I just hope my ecu isn't bad. Ecu's for vx's are some what of a rarity. Hopefully find the source of the problem today.

 

The most common reason a car would run rich is if it has an exhaust leak.

 

Welp, cel is still on... Any suggestion to what to do now? I've reset the ecu and the light still comes on.

 

I had same issue bought brand new one from honda w/same issue to follow. So i ended up zip tying the map sensor plug on to the sensor itself making it a tighter connection and problem went away. Idk why it worked but i only found it by playing w/ sensor plug while hooked up and noticed engine tone/rpm changed while pushing around on it.

 

Thank you for the tip. I'll be away for a few days working but when i get back i'll try it and hopefully it solves it...

 

Np

 

You mean free at harbor freight

http://slickdeals.net/forums/attachm...2&d=1364537530

 

Have you tested anything at all, or are you just praying it'll fix itself ?

 

I have... I'm not able to try all of the suggestions right away because of my work schedule. Throttle body gaskets on the way from cali being that advance auto doesn't carry one for a vx and going to test connection on map sensor plug while i'm at it.

 

I actually have a coupon for one in my wallet... lol