Hi everyone Evo8 Noobie here. Anyway, here's my issue. My car's RPM drops below 500 and stalls about 30% of the time under certain conditions. Goes something like this, engine load (under almost any RPM) hit the clutch, hit the brakes, rpms drop below 500 and occasionally stalls. I have greddy s bov (recirc/1 spring mod), 3" intake with KN filter from rnr, SAFC, 3" TB, MBC. I've done some searches and found that it could be a variety of issues. I spent a good part of yesterday adjusting and readjusting the BOV (softening and hardening) and SAFC (leaning and richening at low throttle/low RPM) but problem still persists. Can anyone help an Evo brutha out? Thanks!

 

Its likely the "MAF Pipe" (the intake pipe) You can put the stock pipe back on and see if it goes away.. I'm not sure why it does this, but I get the same thing, I did log the problem and it seems that there is airflow reversing through the MAF sensor causing the engine to think its getting more airflow than it is..

It is either the air recirculating through BOV, or residual pressure in the intake tract causing the compressor to reverse (or surge) allowing the airflow to pass back through the intake..

So far I have not found an easy solution other than putting the stock intake pipe back.. If you want to spend money you can go with a blowthrough MAF sensor, or you can try the HKS EIDS (though I don't think it will function correctly in this particular situation)

Do you have the boost controller (MBC) tapped off the same vacuum line as the blowoff valve? If you do, put it back on where the stock solenoid gets its vacuum source.. I personally (and its becoming fairly well known) that it may not be a good idea to share that vacuum source with the DV/BOV

 

I just installed my EIDS, and I get a code saying VAF signal low

 

You switched the in out of the MAS wires. I tested it both ways on mine and when the wires were incorrect that is the SES code I got.

So just switch the yellow and white wires.

James

 

I'd like to know if this solves the problem.. It would make many lives easier..

 

Argh, i wonder why. Also, I tried starting up the car with out the wires connected, and the car will start/rev with the out a vaf signal? Anyways, I guess I'll switch them, I didn't use the connectors, I soldered all the joints.

 

how is the EIDS working for you guys?

 

i would like to know also, before i buy one..
where is the best pricing. i only found them at list price.

 

124 at lancershop.com

it works fine, what happens is when you let off the gas abruptly, the idle is set to 1200rpm, then idles down a few seconds later. that's with the pot pointing straight up (50%), on my car. I haven't had time to adjust it because I'm getting my clutch installed.

 

might have to order one. thanks.. any other opinions?

 

I have an EIDS and it solved 95% of my stalling problems. I think it will fix 100% once I get it dialed in correctly. The hardest thing is setting the EIDS properly if it is set to high the car will stall when started and if it is too low, it will have little or no effect.

Good luck, I think it is a good product and worth the $100 or so dollars.

 

anyone have the EIDS with the greddy type s venting?