Question about 1989 Honda Civic

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Runs rough, won't accelerate past 3200 rpms, showes codes 4 14 16,

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  • Honda Master
  • 20,706 Answers

Old god, love em. 4cyl? or D5Z1?
ill answer for
the harder the better, for me, a challenge.
so did you look up those codes, google them (millions of hits)
i guess not.
so
4. crank sensor dead.
14 IAC , bad idle controls.
16 fuel injector issues.
best of best is....
here, then click OBD1 (relics)


http://www.troublecodes.net/honda/

we always fix spark first, cant burn fuel with bad spark.
so code 14.
the CKP is bad, or not plugged in

ever seen an FSM
http://hondatech.info/downloads/Auto/Manuals/Civic/

im not sure above, covers 14s.
but it is a malfing CKP sensor and the ECU never lies about that.

the signal is weak or dead, or drops out 1 in 10 hits.

Posted on Dec 27, 2013

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Posted on Jan 02, 2017

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