crave13k

hey everyone.
my friends 2000 s2k is running very rich and the plugs are black. they are a month old. the check engine is blinking and the the car idles like crap. any ideas?

21337R

UH OH!

zeroptzero

mine was running very rich, I decided to change out tbe primary 02 sensor, I don't have any scientific proof but it seems to be running less rich now judging by my rear bumper and exhaust tips.

You might have a bad fuel pressure regulator but you'd have to do a fuel pressure check on it to know that.

You should get the cel codes read, they could give you some insight.

s2k16803

I just had this same problem... I had a vacuum leak around the map sensor which made it run very rich but I did not have a blinking cel..... I would guess misfire for u.

s2k16803

sry didnt read your title.... Change your plugs see if that helps you might have two problems. Running so rich might have caused a plug to foul. Check all your vacuum lines.

Frankenstiein_B20

I just had a similar problem actually n I thought it was the map. Check engine came on last night so I took it to Honda and it turned outto be the air pump. I would get it checked out.

crave13k

i pulled the code with my code reader and it says misfire cyl 1,2,3,4 and the other code says random multiple misfire. thats all it gives me.

zeroptzero

how old are the plugs ?. Misfires are typically bad plugs, bad injectors, or bad coil packs, it is odd that it is on all 4 cylinders though unless something caused all 4 plugs to foul by running rich.