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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 17, 2026
International Automotive Technicians' Network (iATN) - Members Only
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Help Request Answers
2021 Porsche Cayenne 3.0L Performane VIN: WP1AA2AYXM
Car fail the emission test for code p0299 system underboost, vehicle drives and runs perfect all vacuum hoses connected , smoke test the system all tight and sealed the wastevalve seems to work fine no bind what so ever, no info from all data any help woul...
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2018 Toyota RAV4 Limited 2.5L rear main VIN: 2T3RFREV6J
Any help or tips would be great, Thank you.
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Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2015 Ford Fiesta SE 1.6L Misfire VIN: 3FADP4BJ3F
Thank you Matthew [...] and all tech that took the time for replay me. Misfire neutral profile correction was needed, something that simple. He who knows is master of him who does not know. Trouble codes: P0302 (cylinder 2 misfire), P0303 (cylinder 3 misfire).
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