You're also getting quit a bit of knock which.. That's the ECU freaking out when approaching the boost limits (according to the sensor at least)... As for the clogged cat/exhaust... usually the turbo will not build boost in such cases, but in his case the boost jumps a lot while the airflow doesn't...

You're also getting quit a bit of knock which.. That's the ECU freaking out when approaching the boost limits (according to the sensor at least)... As for the clogged cat/exhaust... usually the turbo will not build boost in such cases, but in his case the boost jumps a lot while the airflow doesn't...

There's a good chance you are running into a flow restriction with the stock exhaust/stock down pipe.. This is similar to having a plugged cat.. Back pressure starts to climb forcing manifold pressure up, but total air flow goes down... It would be interesting to see how things look with the stock M...

In addition I've noticed at cruising closed loop conditions the commanded and measured afrs are 14.3.1 . Any idea why this is not 14.7? The afr tables are all set to 1.0lambda at these loads. Thanks Something that doesn't get talked about or looked at much is a Rear O2 sensor trimming in order to m...

I've got a Miata with a Goodwin header, full exhaust and AEM intake.. Under medium throttle between 3500 - 5500rpm it gives a single pop when you shift. I've checked the exhaust system for leaks. Anyone have idea's on stuff to try in the tune? This isn't a back firing issue either.. Feels more like ...

You've gone a really difficult route in order to turbo your MX5.. Changing the gear ratio's in the ECU programming to match the transmission and rear diff in the MX5 could help your issue... Both Versa Tuner and Cobb can do that... Outside of that, there isn't any programmable solutions as far as I ...

APP Thershold 1 and 2 determine when the ECU goes into WOT state.. As a test set them to 105% to keep the car out of WOT.. This should force the ECU to reference the 2 open loop fuelling tables.. I believe WOT has a different fuelling table we don't have access to... If that doesn't change what your...

How did you disable WOT?? You've done a bunch of interesting things with your tune that I would change. You're VE table for example plays into the load calculation's/Torque calculations.. It also plays into the Fueling calculation.. This works with your MAF sensor.. I wouldn't run CL 100% of the tim...

I haven't played with this stuff on a mazda, so I can't tell you for certain how those tables work.. But I've seen similar stuff with GM's and Fords.. If you have a cat on the car, you want to leave those tables stock otherwise you risk melting down the cat.. If you are running the car hard on the t...

It's catylist over temp protection... Try reducing the Cat temp afr corrected table... Put them back to stock.. Also what are you using to log AFR's?? The O2 sensor is listed as a Narrow band O2 and it's sitting at 0.02V... If that is in fact a narrow band O2 sensor, that's a really low voltage for ...