Question about 2002 Mazda MPV
Had many problems resulting in the replacement of MAF, ECT, throttle valve, cam position sensors, idle solonoid, PVC hose and valve and just for hahas all the ignition coils and intke/plenum gaskets.
Finally got it to run nice and then on the first cold day it idled and ran rough, shifted very hard, the CEL, battery, and TC off lights on the dash came on, the OVD off light started blinking, and code P0113 was thrown. Once the sun came out and it warmed up above 20 degrees, it started to run fine and all the lights on the dash went out. Replaced the MAF with another on the next cold day in case we had a bad one - but same problem. The engine warms up fine and maintains steady temp so not thinking its the ECT.
I am a bit concerned as the aftermarket MAFs did not fit int he original intake housing. Finaly had to buy a $180 unit from carquest that was supposedly OEM - it still ahd the bigger MAF - but came with a complete new intake housing that fit between the air filter and the throttle body. Could this new MAF be the wrong one for this year? Any other thoughts? Running out of options and nearesdt Mazda dealer is 60 miles away.
SOURCE: #5 cylinder misfire
I have a corolla and had #4 cylinder misfire also diagnosed at autozone. After changing the spark plugs, problem persisted, along with the same error code, so they recommended changing the spark plug wires, and that is what fixed it. I would have changed the rotor cap too, but was low on dough. Glad that was not the problem.
Posted on Dec 29, 2008
SOURCE: Mazda 6 cold air problem
did you have a air flow sensor on the factory air intake you removed?
if so you will need this part connected to your ram pod outher wise the car wont run properly
Posted on Jan 02, 2009
I had the same cold start/ rough idle problem. The dealer spent 6 different sessions on this, costing me about $1800 total, before I saw the online discussion of lower intake manifold gasket. The shop was skeptical, but I authorized the gasket replacement alone (they wanted to replace the PCM!) That was it! Unfortunately they refused to adjust the unneeded repairs, parts and diagnosis even partly, but the cold start problem is solved, and my Mazda has a lot of new parts, sigh!
Posted on Apr 07, 2010
You might access the Engine Control Module (ECM) using diagnostic equipment connected to the data link connector of the car, in order to pull out all Diagnostic Trouble Codes (DTC) memored. Also through "parameters measurements" menu check the upstream & downstream oxygen sensors voltage values - for bank1 & bank2 of V6 engine. For upstream oxygen sensors you should have a permanent fluctuation of voltage between 0,1 Volts and 0,9 Volts. For downstream oxygen sensors you should have a constant voltage value around 0,4 Volts. I suspect bad upstream oxygen sensor(s), but obligatory scan first the ECM memory and check oxygen sensors voltage!
Posted on Dec 09, 2010
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