Horsepower in a can

[hartley1080]

Just wanted to pass some information along. Was at the Parts store today and happened to see some CRC Mass air flow cleaner and thought I would give it a try since my car has almost 70k figured it couldn't hurt. The bottle said 4-10whp and I doubt I got any of that but, wow did it make a difference in throttle response and overall the car seems to run smoother. Thought I would just put this information out there.

[bzinn 1]

I did mine last week and it was night and day differance...they do indeed get dirty,don't know how often they should be cleaned but I am at 60000 miles and this was my first time cleaning it...lol

[hartley1080]

Same here the directions recommend every time you clean or change the filter

[Qmobile]

bout how much that run you? I got 91k on mine so i'm bettin it'd do miricles to mine

[A-Dingo-Ate-My-Baby]

this is the only horsepower in a can that is actually valid

the MAF will build up contaminants indefinitely and must be cleaned on a
regular basis. the buildup is from engine shutdown, and the last crankcase
vapors coming out of the PCV valve float around and deposit in the MAF.

gotta get that crud off

[Captain Slow]

I've got some MAF cleaner sitting in my garage, only at 20k on my Yaris but shouldn't hurt to clean it anyway. just hadn't thought of it yet.

[bkndacn]

any DIYs for this ? :D

[WeeYari]

Cleaned mine at 60K miles. Didn't notice a damn bit of difference.

@bkndacn, remove MAF and spray with product. Reinstall MAF. http://www.microimageonline.com/forums/showthread.php/530-DIY-clean-MAF-(mass-air-flow-sensor

[Captain Slow]

^what he said. spray it off, put it back on.

any DIYs for this ? :D

[bzinn 1]

Also I always unhook my battery.....I seem to always short something out.

[Betrivent]

having the ignition off should do the trick for that no?

[A-Dingo-Ate-My-Baby]

having the ignition off should do the trick for that no?

yes but technically you should disconnect battery

I have pulled toyota MAFs about 20 times and never disconnected
battery and never had a problem -except- when the reason I
pulled it was a MIL...need to reset the ECU if the MAF popped a
MIL for best results after reinstall of the MAF

[hartley1080]

I think the can was around 10 bucks

[Qmobile]

I bought mine the other day at it was lik $8 at O'riley's

[NHYarisFan]

Hello YW I did this today and wow. Just rolled 53,000 miles. Idle is smoother mpg is back to normal very happy! Best eight bucks i have spent on my baby.

[10 Francis]

Hm. I know Toyota isn't the best about their MAF sensors getting crud on them (3.4 v6 anyone?), but I was dubious of this. I may have to try it. I expect it's even more pronounced when you have a high-flow air filter with oil in it.

[skeck]

Did this the other day after I got a CEL code for the sensor. I have noticed a great increase my ability to pick up speed a lot faster, although at the same time I also removed my 60/40 seats. Either way, I highly recommend.

[Altitude]

Hm. I know Toyota isn't the best about their MAF sensors getting crud on them (3.4 v6 anyone?), but I was dubious of this. I may have to try it. I expect it's even more pronounced when you have a high-flow air filter with oil in it.

I've got a K&N and when I took out the MAF, not only was the intake tube clean and dry, the MAF sensor didn't look dirty at all. I still gave it a shot of cleaner and it does seem as if the engine runs slighty better. Could be a placebo effect though.

[samuraivince]

thank you Hartley!!!!!! i have 60k on my car and after doing it i really felt a huge diff, and my engine runs so smooth now...... i dont even hear/feel it running! mine was covered in dust thou.

[caper26]

What about MPG? Any of you track those and compare before/after?

[samuraivince]

at first i noticed just how smooth my engine ran, and felt a bit more pep. but it did help my MPG, not a great deal but enough to notice it. keep in mind my sensor had what appeared to be a lot of dust or grim on it. i sprayed my wife's car (chevy) and it threw a CEL, lol.

[Leegamer]

This is a good idea. I'm about to hit 70k miles so I'll have to take a look at the MAF and give 'er a good cleaning.

[caper26]

Did it to mine today, along with vacuuming out intake box and air filter. Also putting in some Lucas fuel treatment.