CAI hesitation CURED!!!

HHPMazda

Member
After years of searching and trying different things I finally got rid of that nasty hesitation 1.6 l engines experience especially when upshifting quickly.

The problem starts because there is a faster movement of air through the air flow sensor, and the ECU is not progammed for that, so when you close the throttle and open it up again the amount of air that enters the engine exceeds the amount of fuel the injector delivers.

The cure is to improve the air fuel mixture. You can do that by increasing the amount of fuel (by larger injectors or more fuel pressure), or reprogramming the ECU (both solutions are expensive because of the parts required and because of less gas mileage), or by making the air that enters the engine more useful by fitting a turbonator or something like that.

In my case the solution came free, there was one of those things lying around in a friends garage, so I took it, place it and WOW!!! SMOOTH SHIFTING!!!! at any speed to any gear in any circumstance!!!!

Now I have no hesitation, more HP and an improved gas mileage!!! These things cost less than $70 and if you ask me week ago I would have payed a lot more for curing that &#$%#@ hesitation
 
how you fix this problem with a turbonator or ??????

Theres a lot of products similar to turbonator (e.g. Vortex, SpiralMax).... Any of those will give the same result....


I've seen some theories that larger inlet tubes from some intakes are also a culprit. It's similar to what you have described. The Simota intakes I sell don't have massively over-large tubes and thus seem to have avoided the problem.

Thats right.....I used to have a 3" intake tube and had huge hesitation and air metering problems until I found out that you have to use the same diameter tube as the OEM intake and the same distance between the throttle body and the air flow sensor to avoid any type of problems. What I did is to cut the air flow sensor housing out of the OEM airbox and keep the OEM intake hose. Thats the only way of being sure everything is going to work OK, however theres going to be hesitation unless you use vortex, spiral-max, turbonator, etc...

You can check out the pics of the intake Im using in my car (Sorry about the dirt....I need to clean my car right away)

Before the air-flow sensor (red arrow) you can use whatever setup (CAI, Ram Air....) and air filter you like... here size is not a problem

Hope its clear now....
 

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am I the only one who thinks this is hilarious? I wonder if he got 15 horsepower and 5 mpg better to boot... (evil)
 
toucci said:
am I the only one who thinks this is hilarious? I wonder if he got 15 horsepower and 5 mpg better to boot... (evil)

No, you're not the only one. Any thread that praises that worthless, useless, shiny stainless steel absurdity should be sent directly to the Dumpster. It seems P.T.Barnum was right after all.
 
Maybe I didnt explain myself right... Im not praising anything more than the fact that Ive found the way to eliminate the hesitation while having more HP and mpg than with the stock intake setup.

If this is absurd and ridiculous then tell me: HOW CAN I CURE THE HESITATION WITHOUT LOSING MPG?
 

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