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cleaing the MaF

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cleaing the MaF

Post by Tha Skinny on 6/22/2011, 5:44 pm

Is there a proper way of cleaning the MAF sensor? I took the peice off and unplugged the wire. I had some RC electric contact cleaner laying around and sprayed inside and out and the harness. My issue is a ping at 4000 rpm im trying to get rid of. Next is the Fuel filter??

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Re: cleaing the MaF

Post by Shelby10' on 6/22/2011, 6:06 pm

How much timing are you running and what octane of gas? Electrical / Mass Air cleaner both work fine for cleaning the sensor.

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Re: cleaing the MaF

Post by Tha Skinny on 6/22/2011, 6:28 pm

you know I am not sure about the
timing. I have not checked it since i have had the car.

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Re: cleaing the MaF

Post by Tha Skinny on 6/22/2011, 6:29 pm

I started using 91 form 87... WHen i heard the ping on the dyno i thought it may be a fuel
quality issue

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Re: cleaing the MaF

Post by BASixxer on 6/22/2011, 10:13 pm

That's always possible. Have you checked your plugs/wire resistance? Never know when the last tune up was done. While that wouldn't really cause a ping per say, it could be causing the combustion to be off.

What were your A/F Readings on the dyno?
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Re: cleaing the MaF

Post by Tha Skinny on 6/22/2011, 10:23 pm

sorry I forgot that I was running 87 on the dyno.. thats when we heard the ping but I have run 91 since and still am having the same problem.

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Re: cleaing the MaF

Post by BASixxer on 6/22/2011, 10:29 pm

Do you know what your fuel pressure is at? no CELs?
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Re: cleaing the MaF

Post by Tha Skinny on 6/22/2011, 11:33 pm

No check engine lights and have not been to far into the fuel thing until today. The last guy said he changed the plugs and things not to long ago but I do plan on doing them soon along with a new cap ad rotor.

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Re: cleaing the MaF

Post by BASixxer on 6/22/2011, 11:38 pm

Cap and rotor? What's that?

LOL j/p...

Where are you located in Owasso? I could come help out sometime...
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Re: cleaing the MaF

Post by 07Shelby500 on 6/23/2011, 9:17 am

You need to check your timing. Pull the SPOUT connector and check timing with a light. You should be about 14* with the spout connector removed for max power. May be a degree higher or lower depending on your octane. But 91 should be plenty for a 5.0 NA

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Re: cleaing the MaF

Post by Tha Skinny on 6/23/2011, 10:46 am

Yeah I am in need of a timing light, I have been seeing some videos and write ups on how to do it. I may just go get one sometime today.


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Re: cleaing the MaF

Post by BASixxer on 6/23/2011, 11:07 am

I have one. Ill call you later and maybe we can meet up tomorrow after i get off work.
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Re: cleaing the MaF

Post by Tha Skinny on 6/23/2011, 12:30 pm

That would be great! I will try and get the fuel filter changed today. What is the "special tool" I will need to get the lines off??

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Re: cleaing the MaF

Post by 07Shelby500 on 6/23/2011, 12:50 pm

They are just alligator clips on the fox just need to loosen the filter clamp

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Re: cleaing the MaF

Post by BASixxer on 6/23/2011, 12:54 pm

Ah thats nice... The special tool on my car sucks lol...

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Re: cleaing the MaF

Post by 07Shelby500 on 6/23/2011, 12:57 pm

Um. You can get a set of hose disconnects for $5 at autozone. Plastic. Set of 6 no frills. Takes apart just about anything with a spring style slip fit.

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Re: cleaing the MaF

Post by BMMC1 on 6/23/2011, 1:09 pm

The filter should come with replacement clips so I just break off the ones being replaced. Just make sure the new one are the correct size. If not, they sell a package of assorted replacement clips for a few bucks.

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Re: cleaing the MaF

Post by Tha Skinny on 6/23/2011, 1:49 pm

Thanks Guys applause

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Re: cleaing the MaF

Post by CobraSN95 on 6/23/2011, 5:19 pm

CRC makes a MAF specific cleaner that you can buy at Autozone. I have a timing light if you need it as well. How many miles does the engine have on it?
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Re: cleaing the MaF

Post by Tha Skinny on 6/23/2011, 11:19 pm

Thanks guys, I changed the fuel filter tonight and when I went to dump the excess fuel out of it. The fuel was clear for a breif second...and the rest was pretty dark no clumps though. It did not look like the orginal but who knows. The car is quite a bit better now on throtle and doesnt not seem t hesitate in high rpm but i thought I could of heard a little something when I was getting on the highway. Then remembered it may take a few gallons to clean everything out. Ill buy some sea foam tomorrow. I still plan on checking the timing and things also.

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Re: cleaing the MaF

Post by Shelby10' on 6/23/2011, 11:23 pm

Timing is still suspect to me. Get a timing light on it and as David suggested dont forget to pull the spout connector before. Some people forget this.

Let us know what you find out.

Good luck

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Re: cleaing the MaF

Post by BASixxer on 6/24/2011, 7:02 pm

Went over after work today and we spent some time on it. Timing was set at 10*, we bumped it up to 13 and it drove a lot better. Never got on the highway while I was in the car but it definitely had a better throttle response, started a lot easier, and sounded a lot better.

May bump it up a little more, but he is definitely liking this better...

now just need to get it back to the dyno and see how she improved!
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Re: cleaing the MaF

Post by Tha Skinny on 6/24/2011, 9:30 pm

Thanks a ton for the help this afternoon! I changed the oil later on and the car is is great running shape! I am doing the plugs and cap tomorrow then of to the dyno on Monday! The car pulls much harder now! Now that I know a little more about what to do I will add a FP regulator and will try adjusting the distiutor a little while im there.

Now off to run the other 5.0 at the Drag Strip! flame

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Re: cleaing the MaF

Post by BASixxer on 6/24/2011, 11:01 pm

Definitely Chris, was great to meet you... and thanks to David for helping us locate that pesky hidden SPOUT connector...

you'll have to let us know what the new numbers are!
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Re: cleaing the MaF

Post by Tha Skinny on 6/25/2011, 1:56 am

Wet and ran the 2011 gt.. It's the roommates first rim with it at the strip .. Couple boo boos on the first run 2nd run 13.74 with a slip in 4th ran a ca special with slicks... He hit 13.17.. Both had bad starts.
Later raced the same car down the highway and pulled on it I'm every gear.
Differences were open vs. Borla catback. Just need to work on reaction as he'll be all gravy.

I think the guy said he makes 374rwhp to the gt 382

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Re: cleaing the MaF

Post by Tha Skinny on 6/25/2011, 2:03 am

Correction... The c/s had not been dyno'd

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Re: cleaing the MaF

Post by 07Shelby500 on 6/25/2011, 7:55 am

When you get a new cap and rotor try to buy one with brass contacts. You will get a slight performance edge from that.

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