Forgive me for starting a new thread about this but I couldn't find what I'm looking for by searching.

My basic question is simply how well does Treadstone's "tuned" MAF adapter actually work and does it throw CELs?

It seems that my O2 sensor was getting lazy before it finally stuck rich. It also seems that the stuck O2 fouled my copper ND plugs. After replacing the O2 sensor and installing NGK Iridiums, the car runs pretty darn good without a piggy. Only 2 problems remain:

1) A slight lean hesitation on initial WOT

2) A recurring P0101 CEL.

My oem MAF tube is 2.80" ID. My turbo MAF tube is 2.60" ID. I have 440cc injectors installed. My theory is that a 3" OD (2.90" ID) MAF tube may solve the P0101 or at least reduce the frequency of it so I can pass emissions. Fuel trims would be reduced a little and my OL AFRs are a little rich now (10-11.5:1). The larger MAF tube should lean out my OL AFRs very little and I'd feel comfortable running 6psi at 11-12:1. I doubt that a larger MAF tube will do anything for the hesitation but it's slight enough to live with now that the O2 sensor reacts normally.

Any opinions other than "Don't run w/o EM, YOU'LL BLOW YER MOTOR!!!" are welcome and TIA.

 

Don't run w/o EM, YOU'LL BLOW YER MOTOR


bwwwaaaaahahaahhaha...sorry had to.

 

hey yea the treadstone mad adapter does give a cel ...

 

dude i have since moved on back to an old hobby from when i was younger...(Xmods) lil rc cars..now that i have soldering skills and money in my pockets i cant make a 1:28 scale car go 48 mph in the blink of an eye

 

Everybody loves a smart ***!

At least if i do blow the engine, it will give me the excuse I need to get an Audi A3, 4dr GTI or Clubman S and not have to worry about piggyhacks anymore...

 

Hey Martin, are you sure about Treadstone's maf adapter throwing a CEL? I searched and found everything from "it works great" and "engineering genius" to "doesn't work" and "POS" but no mention of CELs.

I did however find some decent pics of one. Interesting design concept. They space the MAF further out from the air stream to reduce the metered air (injector compensation) but also use a velocity stack design to increase air velocity at the MAF. Easy in theory but to tune it just right is another matter.

Got dyno for your RC car? lol

 

rc car dyno would be the shizzle...

sorry but iv got nothing to help ya out bro

 

NP Bro. I still have options. I know my MAF reads high now so I'm inclined to try a 3" intake pipe. If it works, great. If not, I can try the FIC again and if that doesn't work, there's still Greddy, Unichip, Map-ECU2, Dezod APR X1, etc. I'm pretty confident that the FIC is the only piggy that has CPS problems. After all, no one should have to add resistors if it worked correctly in the first place.

Recently my biggest problem has been the weather and lack of a garage to work in. In the spring I'll get back to work on it. I'm pretty lucky it runs as good as it does w/o EM until then. Thanks for your past help and I forgive you for your previous not-so-helpful post...