1986 hond accord lxi pgm-fi light comes on and engine bogs out up to 4000 rpm with bad raw gas smell

I would definitely start with a pgm-fi relay they are prone to failure.
they are however tucked way up under the dash

so why not , get the PGM-FI flash codes, insert the Diagnostic jumper
and let it false the DTC error codes. then post them.?
ever do the 60k tuneup this decade? nows the time....

rotary air control valve

pedal pressure? the throttle sticks< OPEN?
ive never ever seen a post ever for pedal pressure,
what does that mean? im clueless here, and sounds very scary.
to any mech. after all, throttle valves failures, can be man killers.
so.....???
when failed does the engine crank over full speed with the starter?
grrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr fail to start.
that normal sound of a good starter, yes?

is this an intermittent problem only?

NO start, ? (cranks robustly)
no, lets start at step one.
1: check all fuses. in both fuse boxes.
2: are the Headlamps working at full brightness.
3: does all the normal dash cluster lamps glow , key on.
Charge, Brake , Check engine lamp> all glow, if not, stop.
4: spark got spark at all cylinders, (a test)
my guess is engine is flooding, (smells) and is due to
lost spark.
ever do the 60k mile tuneup this decade?


this very old car has relic, warnings, back then.
non standard.

the PGM-FI is early name for CEL, check engine
on this engine you must find the ECU (PGM-FI box)
and see the LEDs on the side.
they can be made to blink secret codes. errrors
these errors will be key to diagnosis, i bet.

here is the clue
http://www.cargurus.com/Cars/Discussion-c9084_ds477362

the cars FSM book covers how to diagnose no starts
or no cranks.

there is a fuel injection module under the dash.if you,remove the module and check the circuit board it will have broken solders in it. our shop has fixed alot of those..a hayne smanual will show you how to take it out....sorry i do not reply.

check the fuel pressure regulator and the map sensor vacuum hoses. as for the not revving above 4000 rpm is what the computer limits the engine to with no load on it, like in park or neutral.

Code 13 Barametric pressure sensor. ECM uses it for fuel mixture and timing.It is a wht 3-pin harness connector Baro-sensor is located under dash on passenger side make sure if there is a hose that it is attatch other than that you need this sensor

ok is agood idea, but what if it still comes on so you better contact electrician before you do that.thak you

Have them check the PGM FI relay. This is what sends power to the fuel pump and the fuel injectors. They commonly go bad intermittantly. Sometimes if you bang on the side of the dash you can get it to start or not start.

it might have a bad coil pack. does it miss at all? the plastic boots deteriate and cause an arcing in the spark plug tube. my experiences have always been high rpm is ignition be it a coil pack or something in ignition.