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Seat Leon 2.0 tdi CR170 stage 1 remap
Ben Mitchell • January 20, 2025
Diagnostics, remedial work & stage 1 for this CR170
This Seat Leon came in for some diagnostic work as it was down on power. After some road tests we quickly diagnosed a faulty wastegate actuator was the culprit! With the actuator replaced we finally had boost, however this vehicle was also suffering with an erratic idle.
Live data showed massive fluctuations in fuel pressure so we replaced the fuel pressure sensor (common fault on these engines) and then finally this Leon was running as it should!
After some more roads tests to confirm boost/fueling was all in check we proceeded with uploading our stage 1 software. After more road tests to confirm as was good we were happy to hand this vehicle back to the customer.
Considering this car came to us in limp mode and then left with 205hp & 420nm of torque, to say this customer was over the moon would definitely be an understatement!
