starts but will not rev above 3000 rpm's

1987 MAZDA RX7
66,000 MILES • 1.8L • 2WD • MANUAL
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TED MORHOUS
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It ran okay, but over the winter mice got at it. It would start great, but when it reached 2000 rpm's it would quit running. Dealer found broken wires etc and fix that part. Now they cannot get it to run over 3000 rpm's. Any suggestions?
Jul 16, 2016 at 7:35 AM
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HMAC300
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check intake manifold vacuum at idle if 15" or below check for a blocked exhaust. if fuel injected check fuel pressure with a gauge.
Jul 16, 2016 at 11:50 AM
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TED MORHOUS
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Checked with dealer mechanic and both those items checked out fine. Tks for your help.
Jul 20, 2016 at 7:44 AM
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STRAILER
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Yes those engine have an actuator that opens additional ports for the intake, please check the vacuum lines leading to these actuators and get back to me, also check the linkage.

Best, Ken
Jul 21, 2016 at 11:15 AM
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