chip

[jturnbull]

so i sent my chip out to ecs got it back today and it seems exactly the same
boost is exactly the same
i called ecs and they said it could be the mas air flow sensor anyone know anything why its not changed?

[jbrentd]

Is it in stock mode?

[djwimbo]

did you buy it w/ the software already installed? What's your boost at?
5psi = limp
8psi = stock
10.6psi = stock for 2001+
anything more should be "chipped"
14.7 psi = 1Bar = my Unitronic 93 oct tune.

[jturnbull]

they said it had 2 modes stock and 91 octane the 2 flashes per second is 91 and 1 flash per second is stock and they both seem to be the same bosst is around 7 or 8 psi just like beofre the chip

[jturnbull]

i sent them my ecu they chipped it and sent it back

[jturnbull]

a few of them were convinced that it was the mass air flow sensor where is the mass air flow sensor and how to i change it

[njm23]

it is not your MAF, if you are still boosting to 7-8 psi your running in stock mode.. your MAF wouldnt change your boost, limp mode would and like he said above you would be at around 5 psi.. not 7-8. ECS didn't do something right.. If it was your MAF your car would not be running good at all.

By the way, MAF is in your airbox(theres a black boot like thing covering where it is)-you need a security torx to get it out I am pretty sure.

[20vpower]

take it out and open it up

[jturnbull]

they said the faster blinking is race and slower is stock and they are exactly the same

[njm23]

okay, they are wrong. are you trying to mess with us? haha. if they are the same they obviously messed up.. No other questions are needed, tell them to test it themselves to see.

[jturnbull]

they are telling me i have to pay to ship it to them so they can fix it.... i did this shit with out my parents knwoing and now i cant do it again and im so fucking pist off about this shit i guess ill have to just send it out again theres no other way

[djwimbo]

Do you have a boost gauge to verify that your boost level isn't changing? or are you going by the "Butt Dyno"? Just asking, to help you cover your ass.
as long as you're getting the flashing light to confirm your change in modes you should be able to tell the difference. Even on their conservative tunes.

[Stampy]

Maybe you should try finding a local shop that deals with APR and ask them to make sure you are doing it right? Maybe a local member to you could help you out? Maybe you have a massive boost leak?

I would call APR and talk to them, then I would test for a boost leak.

[Stampy]

One other thing...is this happening in every gear? 1-2..sometimes 3rd see lower boost since its load sensitive. 4-5th see the higher psi numbers

[DND]

Actually a dirty MAF can cause lower boost without the car running rough, I had that happen.
And, it could be a boost leak as that is another common culprit, a little crack in a small hose and some of the increased pressure escapes. I think I had that happen too.
And, it could be a plugged exhaust system. And guess what, I had that one happen too. My catalytic converter came apart inside, fell in on itself, and got nicely plugged thus preventing me from boosting over about 7 PSI because there was so much back pressure it just couldn't push the exhaust gases through any faster.

Best way to tell is log it and see if the ECU only requests 8 PSI in stock mode and 15 PSI in 91 octane mode but still only gets 7 or 8. That should tell you if you actually have the 91 octane mode and/or that something is either plugged or leaking. Run a leak test and check for leaks. If you have no leaks do a back pressure test and see if your exhaust is plugged.

[njm23]

he has a boost gauge.. he can see if he has a leak, by looking at that, hopefully he has vacuum on it too... should be around 20 vac.. Also, if your cat is clogged, sit there and rev it a little bit one time. The needle should jump up to 0 drop quickly then go right back to the normal vac, . I remember my old tech teacher telling me that one to see if you had a restrictive cat, idk how true it is just thought i'd throw it out there.

[prey]

yes exactly, the maf will cause less boost, change it immediately, my friend had the same problem with his apr chip and was running like stock, as soon as he changed the mass airflow sensor he was spiking 20+psi and holding like 17-18 on his 01' a4. I believe the sensor is in the airbox IIRC.

[jturnbull]

i have a boost gauge and boost is exactly the same on both modes around 7-8 psi... maybe it is the maf i really dont know i called ecs and they are calling apr and getting the burn log to see if they gave me the right programs

[jturnbull]

im located in fairfield county ct if anyone could help that has a vag cause i dont have one and i dont have the money to get one

[seanko04]

To make it all easy do you have a friend with a 1999 or below Audi? If so just plug it into their car and see how it runs.

[nji14]

im in southern mass if you want to take a drive..i have no probelm plugging your ecu in my car i have 99.5 tQm pm me if you want a hand

[jturnbull]

Ok so i talked to ecs and they got the logs from apr and they said it was burned and chipped correctly so now time to figure out the problem it boosts about 8 psi just like stock so i dont think its a boost leak i guess it could be the maf but idk anyone know or could help

[.Mad Hatter.]

if the only thing on the car that changed is the software than its unlikely that you have a bad MAF all of a sudden, or a boost leak all of a sudden, the fact that it would be running very poorly notwithstanding.

tell them that you will pay for shipping but if they send it back to you and it works they shall be refunding your shipping costs (as this would imply that it was their error)

that being said, make damn sure youre not overlooking something.

[jturnbull]

well maybe a month before i got the chip i was going maybe 125 down the highway and as i got up to 130 something made a noise and ever scince the pick up after 80 has been much slower boost remained the same

[Stampy]

You know I had the vacuum line that went from my N249 to my DV fall off at the N249. The car still held 6 psi, but thats it. Full throttle was that too. Check all your vac lines. Maybe bypass the N249, so the DV runs directly off the IM. Thats what I did after I found the Vac line laying on my oil filter. Car seemed a little more responsive then too.