Happened after an hour of driving, climbing up a grade on I-5 before Castaic at typical freeway speeds.
Pulled codes, 4 found: P0402 EGR FLOW EXCESSIVE, P0234 ENGINE BOOST CONDITION - LIMIT EXCEEDED, P0402 again, and P0401 EGR FLOW INSUFFICIENT.
A few thousand miles have been put on, without a hiccup, after Banks, CAI, Monster Intake, and both Boost Tubes install.
I'd guess a sticking EGR for 3 of them, plus a turbo actuator VGT vane issue at the same time? Is there a better possibility that could've thrown all 4 codes, or could a sticking EGR cause all 4 of them?
Pulled codes, 4 found: P0402 EGR FLOW EXCESSIVE, P0234 ENGINE BOOST CONDITION - LIMIT EXCEEDED, P0402 again, and P0401 EGR FLOW INSUFFICIENT.
A few thousand miles have been put on, without a hiccup, after Banks, CAI, Monster Intake, and both Boost Tubes install.
I'd guess a sticking EGR for 3 of them, plus a turbo actuator VGT vane issue at the same time? Is there a better possibility that could've thrown all 4 codes, or could a sticking EGR cause all 4 of them?
