1999 civic d16y8 p0505 ideas
#1
1999 civic d16y8 p0505 ideas
I have a stock 99 EX and recently it's developed the p0505 issue. I've seen this on many threads but none of them seem to come to a conclusion, so I'm looking for help!
At around approx 1500 rpm engine pulses erratically with throttle pressure, and releasing and reapplying pressure to the throttle while driving produces a violent jerk. The car will buck if you are in that 1500-1700 rpm range. This only happens when the car is at operating temperature. The car idles at 1400 when this is going on and doesn't drop unless you turn off car and restart or clear the code.
1. Sitting at a light, the idle will suddenly rise about 400
2. Cel will immediatly come on
3. What I described above will happen
If I clear the cel while driving the issue suddenly goes away but will come back a day or 2 later. So far I've checked for vacuum leaks and cleaned the iacv, but that only worked for a few days. Please help!!! I have a scanner that shows some live data if that helps!
Ps: car also has p0420 which is a cat code and is probably unrelated FYI
At around approx 1500 rpm engine pulses erratically with throttle pressure, and releasing and reapplying pressure to the throttle while driving produces a violent jerk. The car will buck if you are in that 1500-1700 rpm range. This only happens when the car is at operating temperature. The car idles at 1400 when this is going on and doesn't drop unless you turn off car and restart or clear the code.
1. Sitting at a light, the idle will suddenly rise about 400
2. Cel will immediatly come on
3. What I described above will happen
If I clear the cel while driving the issue suddenly goes away but will come back a day or 2 later. So far I've checked for vacuum leaks and cleaned the iacv, but that only worked for a few days. Please help!!! I have a scanner that shows some live data if that helps!
Ps: car also has p0420 which is a cat code and is probably unrelated FYI
Trending Topics
#9
#10
Honda-Tech Member
Thread
Thread Starter
Forum
Replies
Last Post
pete1959
Honda Civic / Del Sol (1992 - 2000)
6
02-04-2013 09:51 PM
Layla.7
Honda Prelude
27
10-15-2011 03:10 PM
maxogsr
Honda Civic / Del Sol (1992 - 2000)
16
08-12-2011 02:00 PM