MAP help (quick question)
MAP help (quick question)
FINALLY got my idle issue figured out. its my map, which is starnge because i was DAMn sure I tried it before. anyways. I unplugged the airline to it and the idle went to normal
does that mean I need to BUY a new MAP? or is there a way to clean/fix them??
Last edited by BOOSTscoop; Oct 30, 2008 at 09:47 PM. Reason: ima n00b
you can clean them with a q-tip and some rubbing alchol but i would go to napa and buy some maf cleaner and do it with a q-tip. what type/ brand maf are you using? i dont recall having an air line conection to any of my camaro or cobra maf sensors just the electrical plug. i say just put a filter on it or plug it.
We have no MAF on our cars. You're probably referring to the MAP sensor. Put a new line on it and make sure to run an inline filter to prevent debris and moisture from getting to it.
on a side note, the MAP in ther rx7 is doubling as the MAF correct? i read about it... i think. lol. i got invited to be in the new rob schneider movie.. 12 hour shoot.. exhausted
MAF uses a plunger if you will. This plunger moves depending on air flow. A map sensor measures vacuume and pressure levels. I don't understand what your problem is with your sensor. I assumed when you said you unplugged the line you meant there was a physical plug in the line. If you unplug the map sensor the car will not run "normal." It will either not run or run like the motor is blown...
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thanks, but I really fail to still understand.. if I figure out how to test it and its bad, does that mean I have to buy a new one? or is there a way to calibrate or repair it? I might be able to locate someone to just let me use theirs for a few minutes so i can see.
That's an easy way to verify a problem without needed to do the exact tests. Plus, it only takes a minute to swap one in.
yea man, its 1 bolt, 1 electrical plug and 1 vac hose... literally a 3 minute change. im just trying to find the factory MAP for sale, ill ive found is the gm 3 bar and a bunch of random 3rd party makers. thanks a lot for your help Mahjik
FWIW,
Here are the results from my '94's MAP sensor test back in 1995, done with a MityVac and multimeter:
MAP Sensor Characteristics
With Ignition ON –
Condition.......................Spec.............. .......Measured
19.7” Hg vacuum.......1.25 – 1.55 V..........1.18V (@ 20” Hg vacuum)
0” Hg (atmos)............2.38 – 2.78 V..........2.68 V
14.3 psi pressure........4.35 – 4.65 V.........4.58 V
Here are the results from my '94's MAP sensor test back in 1995, done with a MityVac and multimeter:
MAP Sensor Characteristics
With Ignition ON –
Condition.......................Spec.............. .......Measured
19.7” Hg vacuum.......1.25 – 1.55 V..........1.18V (@ 20” Hg vacuum)
0” Hg (atmos)............2.38 – 2.78 V..........2.68 V
14.3 psi pressure........4.35 – 4.65 V.........4.58 V
Last edited by wstrohm; Oct 31, 2008 at 01:14 PM.
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