My Accoed is "missing"
07-08-2007, 02:00 PM
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My Accoed is "missing"
OK, here's what's going on.
91 Accord EX, 197k miles. Been running good for a while, burns some oil but that's to be expected. Daily driver, 3-600 miles per week. A week or so ago it starts stuttering, missing at light throttle only. Half to full are fine. Also, only misses after warmed up to op temp.
Things I've replaced in pursuit of fixing:
Plugs
Wires
Dist cap and rotor
Coil(damaged during comp test)
Oxygen sensor
All to no avail. After doing some extensive searching, I've noticed posters attribute this condition to EGR ports being clogged. I pulled the EGR valve and cleaned it thuroughly and made sure it was opening and closing with vacuum. Checked out ok. I finally found the procedures for cleaning the EGR ports on the 90-93 Accords. I pulled one of the plugs out and it was dirty, but definitely not clogged.
Another thing of intrest is that during my diagnosis, I disconnected the TPS and the miss disappeared. The spark plugs lead me to believe I have a lean issue. The TPS gives no ohm readings just above fully closed throttle and has 5v key ON.
Should I continue cleaning the EGR ports and intake runners and such? Or should I persue the TPS issue? Where do I aquire a TPS as Honda and local parts stores only want to sell you a complete TB?
Thanks
Al
Is there anyway to edit the title?
Sorry about that.
91 Accord EX, 197k miles. Been running good for a while, burns some oil but that's to be expected. Daily driver, 3-600 miles per week. A week or so ago it starts stuttering, missing at light throttle only. Half to full are fine. Also, only misses after warmed up to op temp.
Things I've replaced in pursuit of fixing:
Plugs
Wires
Dist cap and rotor
Coil(damaged during comp test)
Oxygen sensor
All to no avail. After doing some extensive searching, I've noticed posters attribute this condition to EGR ports being clogged. I pulled the EGR valve and cleaned it thuroughly and made sure it was opening and closing with vacuum. Checked out ok. I finally found the procedures for cleaning the EGR ports on the 90-93 Accords. I pulled one of the plugs out and it was dirty, but definitely not clogged.
Another thing of intrest is that during my diagnosis, I disconnected the TPS and the miss disappeared. The spark plugs lead me to believe I have a lean issue. The TPS gives no ohm readings just above fully closed throttle and has 5v key ON.
Should I continue cleaning the EGR ports and intake runners and such? Or should I persue the TPS issue? Where do I aquire a TPS as Honda and local parts stores only want to sell you a complete TB?
Thanks
Al
Is there anyway to edit the title?
Sorry about that.
Last edited by 91 EX; 07-08-2007 at 02:42 PM.
