I've had this check engine light for the past few months. The code given was for a MAP sensor. I replaced it with 2 MAP sensors from the junk yard and still have the check engine light on. I took it back to my boys shop and still it's the MAP sensor code. I some what cleaned the tb with carb cleaner to try and get some of that gunk out and still had no luck. Anyone else run into this prob? Should the whole tb be replaced aswell? I'm gonne try one mor MAP sensor that I know is good just to see if the junk yard ones are bad.

 

Have you checked the wiring ? If not check it, do some voltage test. A check engine light only tells you there is something wrong in that circuit. It does not mean the part is bad.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">Have you checked the wiring ? If not check it, do some voltage test. A check engine light only tells you there is something wrong in that circuit. It does not mean the part is bad.</TD></TR></TABLE>
Check all the connector pins all the way back to the ECU too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">Have you checked the wiring ? If not check it, do some voltage test. A check engine light only tells you there is something wrong in that circuit. It does not mean the part is bad.</TD></TR></TABLE>

I haven't done that yet. I was hoping I wouldn't have to.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chiovnidca &raquo;</TD></TR><TR><TD CLASS="quote">
Check all the connector pins all the way back to the ECU too.</TD></TR></TABLE>

damn. sounds like alot of work..

 

my $.02,
if you're boosting, you need check valves. n/a, i don't know.

 

No boost here. If it's a wiring issue, is it a biotch to fix? Would I have to replace the whole engine harness??


Modified by MIZIKETSK at 3:00 PM 6/14/2004

 

if its a boost issue i have the missing link if you want it

 

You have to check the resistance from the sensor connection to the engine harness connection by the battery. Then check the connection (where the battery is) to the ecu connection. Make sure that you have good continuity. If good check the resistance. Resistance is to high repair. Resistance from the wire will cause a faulty code. good luck

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Quitripin &raquo;</TD></TR><TR><TD CLASS="quote"> If good check the resistance. Resistance is to high repair. </TD></TR></TABLE>

Thanks for the tips. You kinda lost me on the above though.

 

do you have an eratic idle? check to see if your plugs are crossed between map and TPS

 

Resistance in a logical term. (electron theory) Say that your an electron and the hallway is the wire. And your at point A of the hall and your trying to get to point B. So your goin threw the hall and you notice that theres some objects like boxes thats preventing you to go to point b freely but you manage to get there but not as quick as if the boxes wasn't there. The boxes cause you not to move freely. Boxes is the resistor that's causing resistance! get it!

 

My obd-0 b16 threw a map sensor code a while ago. I checked the wiring at it was fine and cleaned out the tb, but the code didnt go away. I swapped throttle bodies and the code went away. I guess my tb was just that clogged.