CEL Code 3, MAP Sensor, car dies and weird low rpms throttle response.
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From: Life in the slow lane
CEL Code 3, MAP Sensor, car dies and weird low rpms throttle response.
The first time it came out was when I downshift from 5th to 4th gear, no misshift or anything, just went into low VTEC to pick up some speed on highway. It came out right after I went into fourth.
We read the code and reset ECU and it was gone. 1 week later, during an autox run, it came back on. Uptill this point, my car still drives fine, idles good but seems to rev up slower.
Today, I was in 2nd gear VTEC and it feels weird, after I came to a stop, the car dies off on me, I restart it and the rpm goes down again. I have to rev it for a minute to have it idle properly. Ever since that, throttle response in low rpm of any gear seems hesitating and my exhaust smells pretty bad as if I am running a test pipe.
Is my engine ok? Is it running rich? I plan to have the vacuum lines checked and have the sensor replaced, is there any other possibilities?
Modified by nEoMuGen at 1:51 PM 9/9/2003
Modified by nEoMuGen at 1:51 PM 9/9/2003
We read the code and reset ECU and it was gone. 1 week later, during an autox run, it came back on. Uptill this point, my car still drives fine, idles good but seems to rev up slower.
Today, I was in 2nd gear VTEC and it feels weird, after I came to a stop, the car dies off on me, I restart it and the rpm goes down again. I have to rev it for a minute to have it idle properly. Ever since that, throttle response in low rpm of any gear seems hesitating and my exhaust smells pretty bad as if I am running a test pipe.
Is my engine ok? Is it running rich? I plan to have the vacuum lines checked and have the sensor replaced, is there any other possibilities?
Modified by nEoMuGen at 1:51 PM 9/9/2003
Modified by nEoMuGen at 1:51 PM 9/9/2003
Joined: Apr 2003
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From: Propaganda City, USA
Re: CEL Code 3, MAP Sensor, car dies and weird low rpms throttle response. (nEoMuGen)
Code 3 means you have high vacum.
Check the voltage between terminals 1 and 2 (left to right looking at sensor,key on position). Should be 5 volts, then check for continuity between terminal 3 and a body ground. I dont think you can check for amount of vacum without a scanner??
Just for reference since your gonna change it anyway, yeah just change the sensor. When you put it on make sure it seats correctly.
Check the voltage between terminals 1 and 2 (left to right looking at sensor,key on position). Should be 5 volts, then check for continuity between terminal 3 and a body ground. I dont think you can check for amount of vacum without a scanner??
Just for reference since your gonna change it anyway, yeah just change the sensor. When you put it on make sure it seats correctly.
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Re: CEL Code 3, MAP Sensor, car dies and weird low rpms throttle response. (ShuaiGuy)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ShuaiGuy »</TD></TR><TR><TD CLASS="quote">Bump since I'm having the same problems now. </TD></TR></TABLE>
you should just PM neomugen, since he's still very active here..
you should just PM neomugen, since he's still very active here..
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Re: CEL Code 3, MAP Sensor, car dies and weird low rpms throttle response. (mstewar)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mstewar »</TD></TR><TR><TD CLASS="quote">
you should just PM neomugen, since he's still very active here..</TD></TR></TABLE>
no need to...his problem was fixed by cleaning out the back side of the throttlebody plate...no more CEL
you should just PM neomugen, since he's still very active here..</TD></TR></TABLE>
no need to...his problem was fixed by cleaning out the back side of the throttlebody plate...no more CEL
Re: CEL Code 3, MAP Sensor, car dies and weird low rpms throttle response. (93civic96ls)
If your car is throwing a code 3 constantly, simply check your map sensor via the helms manual and a multimeter.
If you have a vafc or some kind of hack installed into your harness, check the wiring
If you have a vafc or some kind of hack installed into your harness, check the wiring
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