Problems after DSMLink install..

[rock0134]

I installed dsmlink in my garage and also rewired the stock fuel pump (have 190 waiting) and I finally got to take it for a drive today and it idles somewhat normal but sputters every few seconds.

I still am on stock injectors and fuel pump. I have global and deadtime set to 0.

When I took it for a drive, it drove normal but then at stops it would idle and sputter again. And when I boosted a little a huge cloud of smoke came out of the exhaust and felt like it had hardly any power compared to normal.

***Ok, so it ran fine before I installed dsmlink, and rewired the fuel pump.... Does anyone have an idea what the hell is going on?

 

[tfoti]

I posted on link about your o2 voltage. Zero out your airflow sliders ASAP!

A wideband would go farther downstream on the downpipe and you keep the front o2.

 

[My1GLaser]

How much/Where to get an o2 sensor from? Are they universal?

Sorry for so many questions I'm just stressed.

Don't be stressed, just zero out your airflow sliders. I am telling you that is your problem. I don't know why they are set so high, but you are telling your ECU to dump a sh_tload of fuel in there.

Sparkplugs.com for the O2 sensor. Get a Denso with the connector for about $60 shipped.

 

[rock0134]

Awesome that was the problem! The thing is though, I have no idea how it got like that.

I had it idling perfect in the garage during the snowstorm last week, shut if off and didn't touch it until today...

I am going to buy the o2 sensor tomorrow and new plugs while I am at it. I took them out just black as night. Cleaned them off, put them back in idled the car for a few minutes, took them back out and black as hell again. That was before I adjusted the airflow sliders back to 0 though. THANKS everybody who posted for the help I appreciate it a lot.


I went for a drive and put it about 3/4 of the way down 2nd and 3rd gear here is the log from that.
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[BoostFrenzy]

I went for a drive and put it about 3/4 of the way down 2nd and 3rd gear here is the log from that.

Much better. Now your front O2 is actually getting something other then "Mayday!!! I'm drowning!!!" . Spark plug change, good. Just keep tweaking it once you get those new plugs in. Or leave it as is and wait for your new injectors to tune with. Your call.

 

[rock0134]

My1glaser posted on the DSMLink forum about how my turbo isn't fully spooling until high (5K+rpm) and said that the wastegate flapper is not closing all the way, which is causing it to build boost slower..

I noticed also that when I use stutterbox, it builds no boost at all. This just further reinforces the option of the WG flapper not being closed all the way right?

I am going to pull the pin out of the flapper arm like he said and try to see if it is open a little when it's supposed to be closed. If it is then i'll shim the actuator flange off of the compressor housing with a washer or two and hopefully build boost a lot faster.

Has anyone else ever had this problem with the EvoIII 16g? Did you shim the actuator flange? How hard was it and how well did it work after?

 

[rock0134]

I think the wastegate actuator on my EvoIII is the one from the t-25, could that have something to do with the WG flapper not closing and making it spool slow??

 

[rock0134]

Just to finish up this thread, I put 3 washers inbetween and spaced the wg actuator flange out from the compressor housing.

After I took it for a drive, IT WAS A COMPLETELY DIFFERENT CAR!

It boosts sooo much faster its awesome. And I can build boost with stutterbox now.

**Also, before I shimmed it, the MBC did not work. I had it turned all the way down and it was creeping to 16 psi. Now, it is still turned all the way down and it holds steady at 12 psi.

I just put my walbro190 pump in today and the FIC850's are next weekend's project. So then I will start base tuning with DSMLink and turn the boost up.

 

[BoostFrenzy]

Just to finish up this thread, I put 3 washers inbetween and spaced the wg actuator flange out from the compressor housing.

After I took it for a drive, IT WAS A COMPLETELY DIFFERENT CAR!

It boosts sooo much faster its awesome. And I can build boost with stutterbox now.

**Also, before I shimmed it, the MBC did not work. I had it turned all the way down and it was creeping to 16 psi. Now, it is still turned all the way down and it holds steady at 12 psi.

I just put my walbro190 pump in today and the FIC850's are next weekend's project. So then I will start base tuning with DSMLink and turn the boost up.

Very nice . Can you PM me your Link login? If you ever post anything about needing help with a tune, I would like to read it.