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3500 rpm eng hesitation service notice

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Old 05-05-08, 04:40 PM
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3500 rpm eng hesitation service notice

I've seen this issue mentioned here a lot and thought I'd throw some info out there that maybe not everyone is aware of. In Mar of 91 Mazda put out a service bulletin concerning hesitation between 3500 and 4000 RPM. It affected T2 and there were a couple of fixes. One, if you went into a dealership within a certain time frame, they would replace your ECU with a new one. The other fix was to install a 2 MM orifice into the wastegate acuator hose. It is Bulletin No.
009/91 date 03/22/91. It affected:
1989 JM1FC3 K0700000-K071200
1990 JM1FC3 L0800000-L0808000
1991 JM1FC3 M0900000-M091310
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Old 05-05-08, 04:43 PM
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Got the info here:
www.alldatadiy.com
Old 05-05-08, 09:16 PM
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my 88 n/a is having that problem. at 3k.
Old 05-06-08, 09:54 AM
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Originally Posted by marshall13B
my 88 n/a is having that problem. at 3k.
do a search for 5th and 6th port actuators. if its not that. check the tps
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