zuzu_pali

having a hard time finding all the vacume hoses . were are they all located ?

i have p0120 and p0104
i replaced mas airflow brand new. and its weird because every morning the codes are gone but when i drive again they come back and car starts acting up again.

i just need some pictures to see if i do have a leak.
also how can i take out the throttle pedal so i can clean the sensor with cleaner

car is bugging me out! i dont know if its the computer i have to replace or what because car runs fine for a few and when it gets to 90 degres it starts acting up going into limp mode ,turning of , and i get p0141 p0120
and p0104 .but some go away and p0104 usually stays

Rudeney

"P2004 - [4] B2/5 (Hot film mass air flow sensor) : Check wiring of signal line and voltage.
(P0104)"

Make sure the wiring harness is secure. Also, where did you get the MAF sensor and what brand? eBay and Amazon sellers have a lot of "crap". I;d get genuine or Bosch from a reliable source.

zuzu_pali

hey i think i found my problem it was one of the vacum lines in the front of the engine that were corroded and white , so far code did not come back on . but im pretty sure im going to jinx my self . i got a bosch mas air flow.

do you know how i can disconnect gas peddal so i can clean plug with contact cleaner . is their a place in the engine to clean as well that is for the gas acceleration pedal ? only 1 sensor or 2?

Rudeney

The pedal itself is very easy to remove. I think there is one bolt holding it in place. It's under the pedal, covered with a plastic cap. After that is removed, there's a wiring harness to disconnect. Under the MAF sensor is the throttle body. It can be cleaned, to.

zuzu_pali

i have code p0306 cylinder 6 misfire and p0304 cylinder 4 misfire and p0300 multiple cylinder misfire. but i put brand new spark plugs with spark plug wires ! ! is it the coils i have to replace ?

Rudeney

Try swapping coils with good cylinders to see if the error remains with the coil or the cylinder. I'd do one at a time, say swap #4 to #1 and check, then #2 to #6.

zuzu_pali

and what happens if the error remains ? if the code reads it to were i put it to the new cylinder then that means its the coil? and if the code stays the same for the same cylinders its something els ?

zuzu_pali

does the "p0300 randome/multiple cylinder misfire detected " MEAN THAT THEIR ALL BAD
or just the 2 sylinders ? does that pop up aswell when theirs 2 misfires ?

Rudeney

If the code follow the coil, then the coil is the problem. If it stays with the cylinder then it's not the coil and could therefore be a bad plug, bad wire, or a compression problem.

As for the codes, you are reading with a gernic OBDII scanner, so P0300 just means "there is a misfire", then the P0304 = cylinder 4, and P0306 = cylinder 6. If you are serious about DIY on this car, I suggest you get a scanner that reads MBZ-proprietary codes.

zuzu_pali

yes i am very serious ! star diagnostic? i want to learn and teach my self . im not born knowing everything

Rudeney

SDS is best - it does everything except SCN coding (because that requires a live, licensed connection to MBZ). If you are willign to do some investigation, you can get the multiplexer for around $250, and the software for "free", but you need to have a really good understanding of complex computer software installation, and virtual machines, etc. A good source for highly technical info is at *******.com.