Mazda engine check light

Tiny
MARTY MCHALE
  • MEMBER
  • MAZDA MIATA
My 1999 Mazda Miata check ingine light is on, with 62k miles on vehicle. Dealer says that it is do to bad gas. He describes it as like creasote in chimney. The code 402 pops up on computer and they say they have to remove the head to clean at $300.I have tried a store bought fuel system cleaner to no luck but out $10. Is this the only alternative I have or would maybe an induction clean solve my delima. Thanks
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Thursday, June 22nd, 2006 AT 1:52 PM

2 Replies

Tiny
JACK42
  • MEMBER
Find a different mechanic
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Tuesday, September 12th, 2006 AT 5:17 PM
Tiny
COSMO
  • MEMBER
The code you are describing is an ERG flow malfunction code. There might be an egr failure or a carbon build up in the intaje manifold leading to the egr valve.

Cosmo

Mazda tech
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Thursday, September 14th, 2006 AT 5:53 PM

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