Audi Repair Questions? Ask a Mechanic for Answers ASAP
I am sorry that you have not been helped yet. Are these mod parts AUDI or aftermarket and if aftermarket, what brand are the additional turbo boosts.
Do you have a scan tool that records live data that you can upload the short and long term fuel trim as well as the O2 sensor readings.
Also if you do, let me know if the O2 sensors are switch between lean and rich or stuck on rich or lean
Please remember that I am not there to test it and therefore rely on you to provide as much detail as possible. And I will say that this will need some testing and an advanced scan tool is going to be needed to get to the bottom of this to find the underlying issue.
Any time you had something that alters factory specs and/or engineering, especially in engine management, other tweaks are usually required as well.
Because mods are involved, it will likely be 1 to 2 hours diagnostic time, which depending upon a shop's hourly labor rate will be from $80 to $200 for this.
Ok, let me see if I have the specs sheet and schematics for the GReddy Profec-B setup
Sorry, I dont have the needed schematics on this GReddy. I will need to opt out and see if another expert does
Hi there. Still need help with your issue?
Good. I tend to agree with you in that the MAF or its circuit must be the problem since all the GReddy Profec-B does is control turbo boost by holding the waste closed for a little bit longer than factory specs.
Please let me know how you make out.
Looking forward to hearing from you.
The blinking check engine light is a sign of a class A misfire. It means catalytic failure is imminent due to raw fuel being dumped on it. At this point, a diagnostic scan tool is recommended so it can tell us what the codes are and what is causing them. If this has been happening, I would also recommend checking exhaust system back pressure to rule out a restriction, plus checking fuel pressure to see if it's more than 50 psi at idle.
Please let me know what you find.
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As I do as well.
Hi again. Just checking to see if the information I provided helped you solve your issue. If it did, then kindly accept and rate my answer now. If it didn't, please reply.