Map sensor


Anny77
02-27-2012, 08:32 AM
Hi all. My car has been running sluggish since i accidently left the oil cap off and drove to work. oil got in the map sensor and it hasnt been running properly since. I have just replaced the map sensor but she still not running well. does it take a while for it to reset itself or is there possibly another problem also.

I was also told there are two map sensors... is this true? really need advice on this plz :)

somick
02-27-2012, 12:39 PM
I am not sure but I believe on Hondas we have MAF sensor. If it got contaminated with oil, all you have to do is buy a MAP/MAF safe cleaner and clean the unit. No need to replace it.

The replacement (if you went that way) suppose to be OEM Honda sensor. That might be your problem. Hondas like only genuine OEM parts.

How can opened crankcase contaminate the sensor? On my car the oil cap is on the driver side and the MAF is on passenger side.

Good luck,
Sam

Anny77
02-29-2012, 03:02 AM
My oil cap is on passenger side of car. map sensor just in behind it. no cover on it. i have replaced the sensor already but still car sluggish, like its driving ok but decides its dosent want to drive. Head is wrecked at this stage.

Dont know what to do next! :(

somick
03-01-2012, 11:08 PM
Any codes?

What kind of sensor have you installed?

Anny77
03-04-2012, 04:30 PM
http://www.micksgarage.ie/switches-sensors/map-sensor/honda/civic/civic-vi/2001-2005/1.4/18468/

This is the sensor i got. was thinking maybe its the connection that plugs into the sensor that might be still dirty? car is getting worse now. dunno what to do.

somick
03-06-2012, 01:43 PM
http://www.micksgarage.ie/switches-sensors/map-sensor/honda/civic/civic-vi/2001-2005/1.4/18468/

This is the sensor i got. was thinking maybe its the connection that plugs into the sensor that might be still dirty? car is getting worse now. dunno what to do.It does not look like genuine Honda part.

Try visit www.tegger.com for truobleshooting tips.

Good luck,
Sam

Anny77
03-06-2012, 03:48 PM
Engine light came on again. uh oh, its not the map sensor, its apparently the O2 sensor :p

CivicSpoon
03-06-2012, 10:52 PM
Engine light came on again. uh oh, its not the map sensor, its apparently the O2 sensor :p
A bad O2 sensor can throw a code for a bad MAP sensor, happened to my brother about a month ago. It can do a lot of crazy stuff; cause check engine light codes for stuff other than just an O2 sensor (as it did), cause lights to flicker (similar symptoms of when you have a bad ELD or voltage regulator in your alternator), cause poor gas mileage, and poor performance.

It will be cheaper to get a generic 4-wire O2 sensor, but I HIGHLY recommend getting one specifically for your vehicle, and to make sure it's the whole sensor and plug. Many places sell O2 sensors that come with the sensor and 4 wires with it, but no plug on the end. Those are meant for you to cut extra wire and the plug off your existing one, and solder it to the new sensor wires. That is an issue, because one of the wires on the OEM sensor is a shielded wire (wire with Grounded wire wrapped around it), but the aftermarket one likely won't have that shielding. This can cause the sensor to fail prematurely. I should probably have listened to my own advice, because I bought an aftermarket one that need soldering, but I'm a broke-ass. If I had the money at the time, I would have bought the complete one though.

Also, just to add, Hondas only have one MAP sensor. Some of the older ones had the MAP sensor in 2 different possible locations, depending on the year (and possibly model), if that's what you may have read. For example, some of the '92-'93 Civics had the MAP sensor mounted to the firewall with a vacuum hose, but most of the '92-'95 Civics had them mounted on top of the throttle body (like the one you posted a link to). Some of the newer Hondas do have a MAF sensor, instead of the traditional MAP sensor though. But the older ones all had MAP sensors.

Anny77
03-07-2012, 05:28 AM
Is this what ur talkin about http://www.micksgarage.ie/exhaust-parts/lambda-oxygen-sensors/honda/civic/civic-vi/2001-2005/1.4/18468/ if it is dere is no way i cud possible afford that :shakehead

Its just a disaster altogether. Thank u all so much for your help with this matter. i will let u know if i actually do get my car sorted.

somick
03-07-2012, 01:00 PM
A bad O2 sensor can throw a code for a bad MAP sensor, happened to my brother about a month ago. It can do a lot of crazy stuff; cause check engine light codes for stuff other than just an O2 sensor (as it did), cause lights to flicker (similar symptoms of when you have a bad ELD or voltage regulator in your alternator), cause poor gas mileage, and poor performance.

It will be cheaper to get a generic 4-wire O2 sensor, but I HIGHLY recommend getting one specifically for your vehicle, and to make sure it's the whole sensor and plug. Many places sell O2 sensors that come with the sensor and 4 wires with it, but no plug on the end. Those are meant for you to cut extra wire and the plug off your existing one, and solder it to the new sensor wires. That is an issue, because one of the wires on the OEM sensor is a shielded wire (wire with Grounded wire wrapped around it), but the aftermarket one likely won't have that shielding. This can cause the sensor to fail prematurely. I should probably have listened to my own advice, because I bought an aftermarket one that need soldering, but I'm a broke-ass. If I had the money at the time, I would have bought the complete one though.

Also, just to add, Hondas only have one MAP sensor. Some of the older ones had the MAP sensor in 2 different possible locations, depending on the year (and possibly model), if that's what you may have read. For example, some of the '92-'93 Civics had the MAP sensor mounted to the firewall with a vacuum hose, but most of the '92-'95 Civics had them mounted on top of the throttle body (like the one you posted a link to). Some of the newer Hondas do have a MAF sensor, instead of the traditional MAP sensor though. But the older ones all had MAP sensors.
WOW! That is the explanation I have been looking for for many years! About five years ago I opted out to install Denso O2 sensor on my son's 1994 Accord. So far so good. The difference was not that big and I decided to go for the genuine part. I guess my feelings were right!

Thanks,
Sam

somick
03-07-2012, 01:03 PM
Is this what ur talkin about http://www.micksgarage.ie/exhaust-parts/lambda-oxygen-sensors/honda/civic/civic-vi/2001-2005/1.4/18468/ if it is dere is no way i cud possible afford that :shakehead

Its just a disaster altogether. Thank u all so much for your help with this matter. i will let u know if i actually do get my car sorted.
Anny!

I would follow Spoon's advice and go after O2 sensor. I hope you did not destroy your old MAP sensor, so put it back.

Good luck,
Sam

Anny77
03-09-2012, 05:25 AM
Still have old map sensor but dont think i can get my money back at this stage. ah well, ye learn from ur mistakes.

Mechanic is gonna try cleaning it first to see if there is any improvement so will keep u posted. :)

Melv2
02-15-2013, 03:07 PM
Anyone who has any problems with their Honda/Acura cars, I found this guy on youtube Ericthecarguy who fixes cars and is really good. He fixes other cars but his main 'focus' is Honda/Acura.

Anny77
02-18-2013, 07:32 AM
Turns out the catalytic converter was completely blocked which was causing the car to be sluggish, Car is faster than ever now but have to replace the cat unfortunately :( engine light is still on though.

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