Those codes are all pointing at a related issue. A/F ratio falling out of range, heater elements within the O2's out of temp range, EGR sensor or exhaust gas temp falling out of range, etc. There is a few areas to consider...
Was any work recently done to the car that may have triggered this? When was the last time you replaced the O2 sensors? Check the O2 connectors and wiring to make sure one of them hasn't contacted the exhaust or melted. Any exhaust leaks especially before the cats? When was the last time you performed an induction service and cleaned the intake, TBs, IAC, etc? The EGR and IACV love to get carbon buildup over the years and can affect flow, similarly can happen to the vac lines to the factory wastegate control solenoid. You mentioned the car felt like it was still running well, so no idle RPM fumbling, hanging, stumbling, etc? Are you running an aftermarket boost control solenoid or OEM? Sorry for the load of questions, but need a bit more to go off of to help point you in the right direction.
Even though the vehicle has considerable low mileage, it's still 30 years old. If it's kept in a garage it tends to handle the elements better than sitting out in the external environmental conditions and will need more routine maintenance and care regardless if it's being driven or not. (i.e. 60K / 120k maint w/ timing belt)
By
protoj ·
Finally, the guys' side of the story. I must admit, it's pretty good I
think you will find this interesting, But you know as well as I do things
don't work like this!!
We always hear "the rules" from the female side. Now here are the rules
from the male side. These are MEN's rules! Please note...these are all
numbered "1".
1. Learn to work the toilet seat. You're a big girl. If it's up, put it
down. We need it up, you need it down. You don't hear us complaining about
you leaving it down.
1. Sunday = sports. It's like the full moon or the changing of the
tides. Let it be.
1. Shopping is NOT a sport. And no, we are never going to think of it
that way.
1. Crying is blackmail.
1. Ask for what you want. Let us be clear on this one: Subtle hints do
not work! Strong hints do not work! Obvious hints do not work! Just say
it!
1. Yes and No are perfectly acceptable answers to almost every question.
1. Come to us with a problem only if you want help solving it. That's
what we do. Sympathy is what your girlfriends are for.
1.. A headache that lasts for 17 months is a problem. See a doctor.
1. Anything we said 6 months ago is inadmissible in an argument. In
fact, all comments become null and void after 7 days.
1. If you won't dress like the Victoria's Secret girls, don't expect us
to act like soap opera guys.
1. If you think you're fat, you probably are. Don't ask us.
1. If something we said can be interpreted two ways, and one of the ways
makes you sad or angry, we meant the other one.
1. You can either ask us to do something or tell us how you want it
done. Not both. If you already know best how to do it, just do it
yourself.
1. Whenever possible, please say whatever you have to say during
commercials.
1. Christopher Columbus did not need directions and neither do we.
1. ALL men see in only 16 colors, like Windows default settings. Peach,
for example, is a fruit, not a color. Pumpkin is also a fruit. We have no
idea what mauve is.
1. If it itches, it will be scratched. We do that.
1. If we ask what is wrong and you say "nothing," we will act like
nothing's wrong. We know you are lying, but it is just not worth the
hassle.
1. If you ask a question you don't want an answer to, expect an answer
you don't want to hear.
1. When we have to go somewhere, absolutely anything you wear is fine.
Really.
1. Don't ask us what we're thinking about unless you are prepared to
discuss such topics as baseball, the shotgun formation, or monster trucks.
1. You have enough clothes.
1. You have too many shoes.
1. I am in shape. Round is a shape.
1. Thank you for reading this; Yes, I know, I have to sleep on the couch
tonight, but did you know men really don't mind that, it's like camping.
Pass this to as many men as you can - to give them a laugh.
Pass this to as many women as you can - to give them an education!!
:dance: :rofl: :rofl: