I searched, couldn't find my question answered. Here is the problem:

driving down the road, "normal" speed, then if I stomp on the gas, it sounds and feels like it falls on its face. (pop/spit/sputter/fart) If I gradually roll into the gas, I can get the boost up to 22!!! Thats it!

Now this could be the issue with the manual "street" tune with the Methanol. Have the knobs set where I was told to.

1. I do have a AEM UEGO guage on my dash, which gets rich when I stomp on it, at cruising speed it reads around 15, goose it, it goes down to 11.5ish.

2. I set/reset the plug settings from 26 to 24. NGK colder plugs 8's I believe.

3. I got the HKS DLI II spark amplifier, with the Magnecor wires (from the boys at Bushur)

4. I did run 110 Leaded thru the tank for 30K miles, 20 of that with the UEGO Gauge. (and that O2 sensor)

5. I am running 100% VP methanol, and it starts at 8lbs of boost.

6. I thought I was "blowing the spark out" causing this. I had this issue before, and changed the plugs, and the problem was gone! now I dont know if maybe it is a problem with the O2 sensors.

With my newest mods, I should be able to get more boost correct??!! Newest mods: TME turbo/HKS280 cams/HKSDLI II/AMS METH. Injection.

Anyone have any ideas on to what the problem is? If I stomp, it sputters/and spits. wont happen if I gradually get on the gas, but it will sputter when the boost gets to 22-23.

Anyone with a STOCK evo (and a MBC )want to come over and let me expierence what 23 lbs of boost feels like?

Any help is appreciated.

 

And NO dafarmer, I wont junk the car!

 

Smokey!! I hope your holidays were fun and relaxing.

As for what you are experiencing above . . . . here is my 2 cents.

I have the alky spraying at about 12-14lbs of boost. You might want to start it a little bit later, this maybe the reason for getting it to work if you roll into the gas but not when you slam on it.

As for 22 lbs of boost only . . . does your XEDE control your boost? Can you turn up the boost in it? I had my Electronic boost controller set too low for my tune with Al. It made us experience what we thought was miss fires but it was actually my boost controller restricting the amount of boost (I had it set at 22 lbs max). I turned it up and bam . . . .26 lbs.

Let my know what you think of my 2 cents thats probably worth 1/2 a penny.

Bumpers!!

 

Hey Bumper! Happy New Year to you and yours (soon to be)! Thanks for the tip. I will try that, and yes, with the XEDE I can adjust the tables. I did get Dynoed before the meth issue was worked out, and before I installed the HKS DLII. so I thought it was one of the two causing the problem. Thanks for the (and only) input!

 

Sounds to me like you have an internal short within your methanol control box. I have seen this first hand. The voltage to the sensor is piggy-backing off of is probably dropping changing the input voltage. This in turn will affect the voltage returned to your ecu.


Example: Let’s say the methanol control box supply voltage is fed off of the MAP sensor and you have 5 volts going into the map sensor under normal conditions and at 200kpa it returns a voltage of lets say 3.2 volts to your ecu.

Now engage the methanol control box with the internal short and it drops the sensor supply voltage to 3.4 volts. Now say we are still at 200kpa but now the sensor only returns only 1.6 volts to the ecu.

The ecu has no way to know that the sensors scale has changed all it can see is a 1.6 volt return voltage so while the manifold pressure is actually at 200 kpa the ecu thinks it is at lets say 81 kpa thus putting the ecu in a completely different load cell then what it should be in. Can you see the direction I am headed with this? The car would exhibit the same problems if it was drawing voltage off of the TPS. It would act similar to a car with a bad MAP or TPS.


Now my suggestion to you sir would be to simply unhook the power wire that goes to the control box that feeds off of one of the sensors for the purpose of testing. Now please make sure the car is on a pump gas tune or you turn the boost down and most importantly watch your A/F's and run the car in the same manner as before. I bet you will find your problem.




Chris Macellaro

 

Geeze Chris, That is GREAT info! I will try that! Now if someone can answer the question on how to hook up the XEDE to it, I would appreciate that. Thanks for the info. I owe you a Starbucks!

 

Thanks a cup sounds nice. Please let us know if that helped or to what you find.




Chris Macellaro

 

Will do, and if you are correct, I will go out on a limb and get you a GRANDE!!

 

XEDE install.......

http://vishnutuning.com/evo_install_xede.htm



Let us know how it turns out, remember watch your A/F's
Chris Macellaro

 

Close but no frappachino! I have the XEDE, and am trying to see if there is a way to connect the "kit" thru the XEDE. have you heard of anyone doing this?

 

oh sorry I must have misread your post.


I have not done what you are speaking of but sounds pretty simple (just needs an output signal) to trigger the device. I am more than certain someone has already done this with the XEDE or at least the new version. I would call Vishnu directly I am more than sure they would be happy to help you out. I have been told they are a nice group of guys over there.




Chris Macellaro

 

Any luck yet friend?





Chris Macellaro

 

Hey boss! Go read my post about a "clunk in the glovebox" I think a computer is "clicking" and causing me trouble. read that post, and spill your knowledge! Thanks in advance,
Kevin

 

PM sent


Chris Macellaro

 

Pm recieved, THANKS Chris!