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I did probably another 20 WOT pulls after the logs you'd be looking at... But anyway the issue is in terms of power not being made as boost increases plus the wastegate duty cycle being way up there. This has remained the same even with another tuner. Take a look here: 6 and 7 are on same tune...

Just to see if I can field any more ideas I'm gonna update this thread with what I tried and checked and what I'm starting to think it could be. Changed the CST5 to an EWG and fixed a fairly major exhaust manifold leak as well as a BOV that was always opening. Currently retuning but getting to...

CS EBCS is functioning same as the one I pulled out to ensure the wastegate issue wasnt being caused by it, so fairly certain it's fine. As for MAP sensors maybe I'll chuck the OEM in just to be sure. Think the GA interprets and sends everything based on the pressure going through it rather...

Sorry, it's a different issue really which is why I did it, under a different title for more specific searches. And yea the CS 3.5 did fail, which is why I'm using the GA V3 built in MAP wired to the harness which is otherwise connected to the CS. But I am worried - if the CS main signal...

POWER Year/Make/Model: 2006 Mazda 6 MPS/MazdaSpeed6 Mileage (km): 204,000 on car, 18,000 on built engine. 500 since engine install Location: Australia Concern: Missing between 30 to 50kw worth of power compared to very similar cars. Making 230-250 (depending on Vdyno setup) when I am told 260...

Cat looks good but there was a nut in it and the o2 sensor was sooty as hell. Will do a log and see if thats any difference.

mine is a MS6 just FYI MAF sensor is cleaned boost was tested twice and all good there going to check the cat out soon

Just recording - air filter couldnt be much cleaner, still looks brand new

Should be fine, my car has had it for 500km and before that it was on another car for maybe a thousand. Will clean it anyhow

Swapped out the EBCS already from Cobb to CS as I was suspecting it for the wastegate issue previously. No difference at all between them The plugs are fresh and gapped 500km ago, had them out for a compression test and still looked good. Compression was good across all 4 with one...

for posterity the issue was my wastegate actuator was NOT tight enough now i am having a seperate issue that is robbing the car for 30-50kw, aiming at 260 - 280 or so with CST5 at 26psi (no port injection yet) and only reaching 230-250. compression test is alright. boost leak test next. any...

Been tuning with Justin @ Freektune and he has recently given up in ideas on what's screwing with my boost pressure. He's had me change my wastegate spring from 17 PSI up to 21PSI but no dice. Other brains trusts I have consulted are also short on answers. Engine mods are: Damond PCV Plate CS...

CAI and a cat-back exhaust. Told me what size they were in a phone call and can't remember now. Has a blow-off-valve as well.

Thinking of buying a car from a guy that's got a Cobb Accessport. Due to his tuning the CEL is on because the car's running too rich, though he's upgraded the intake and exhaust to accomodate the higher air flow. He's cleared the codes but they return after a couple days. Asking how/if this can...