My son drives our 89 Accord SEI most of the time. He has been getting a
check engine light every now and then. He says that when he turns it off and
tries to restart, it cranks over but doesn't fire up. He lets it sit for a
while and it eventually does. I checked for codes and it has #14 which is
listed as "EACV circuit". I removed the EACU and fast idle valve and cleaned
them. I reset the computer by removing and replacing the #11 fuse. The code
was gone and it fired up and idled and ran great. He drove it again today
and had the same problem.
I checked the manual. It said to check the impedance between the two
terminals on the EACV and that it should be between 8 & 15 ohms ... it's 13.
It said to check each terminal for continuity to ground ... should not have
it. Neither does. It said to check the plug for batt voltage with key on.
It has it. It also clicks when plugging and unplugging with key on. New
hoses to it, as well.
I've replaced quite a few parts over the last year. I put in a rebuilt
distributor and (O) ring (had the red dust in it and some sideways slack)
new cap, rotor, new plugs and wires, new fuel injectors and filter. Did the
head gasket, new radiator with cap, all new hoses, even the small ones .....
thermostat, water pump, timing belt, new battery, O2 sensors, rebuilt CV
axles, front rotors and pads, rebuilt master cylinder, rebuilt alternator
and belt. New (O) ring behind the oil filter mount, new valve cover
gasket,camshaft seals and front main seal and a new air filter, motor
mounts. I'm sure I've left a few things out but the point being is, that
it's not a neglected car.
Any ideas as to what the problem is? I wish I had been there with a spare
spark plug to stick into a wire and see if it was getting spark while he was
cranking it over. One of those intermittent things that are hard to check
after the fact. All I get now, after he has driven it home .... no check
engine light but do have the 14 blink code.
Is this a possible wire from the EACV to the computer that has a now and
then break, or could it possibly be a bad Main Relay? Would a problem
with the relay set a #14 code?
I know that I have more digging around to do and things to check but what do
you think so far?
Also, to check connections on the computer, do you have to remove the
driver's seat to get at that puppy, or what?
Thanks in advance for any replies .