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OK, new update. Left the car with a local garage and they came back saying that lambda/O2 sensor is bad and need replacement. Doesn't sound unlikely given the car's mileage and hopefully it will return to normal operation. They had the part on backorder so will have to leave the car with them...

Yes, I'm aware of that and might very well end up going stock (as much as possible). But at the same time, the car has been running flawlessly in this exact setup for 10+ years and passed yearly tests without a problem. So something is not right. Anyways, I did a hunt for vacuum leaks...

Nope. MAP-sensor was stock so figured it would be OK to keep the tune since I replaced sensor with an identical Bosch unit. EDIT: pic of old sensor with wonky readings. /J

Short follow up for the archive with good and bad news. Changed the MAPsensor and it seems to work OK. Turning ignition on without cranking over MAP and Baro are (almost) the same. Also the P0069 code hasn't returned (and no other DTC). Bad news is that the car failed emissions inspection. It...

@Raider 1. OK , noted. Found some old threads confirming that (with the odd exception). Another tune likely won't happen (old car by now) so going stock seems the way to go for increased life expectancy as a fun daily driver. 2. OK, got those on recommendation but I'll look into going stock...

Thanks @Raider and @Enki for input. I don´t have all the details on the car since mods were made by the original owner. It has a Hypertech tune and some minor mods (short ram air intake, K&N cone style air filter, catch tank, some exhaust work). Stock turbo and tmic. It came with a dyno...

Hi, New user here, trying to troubleshoot an error code on my son's 2007 speed 3 (or MPS 3 as they are called here in Sweden). Code is P0069 according to Dashhawk: I can display readings for MAP and Baro. When turning on ignition (without starting engine) they read 70 and 98 kPa...