Engine Code 1: 1992 Accord

Tiny
JIMMYV1972
  • MEMBER
  • 1992 HONDA ACCORD
1992 Honda Accord, 229,000 miles. Following the manual, engine code 1 points me to O2 sensor. I replaced that about 3 weeks ago when I had a code 43. Code 43 disappeared after replacement. Code 1 chart then directs me to code 43. "Is code. Accompanied by poor driveability? Yes. Go to fuel supply system." I have checked injector resistors, fuel injectors, replaced both the fuel filter and pressure regulator. Car will start and idle ok, but will intermittently show sluggishness. It will momentarily come out of it when I accelerate, then start bogging down again. After going through this, sometimes it will completely disappear. Rest assured it always comes back. I will say that it seems to happen more when the car is cold, or hasn't been driven for a few hours, but on occasion, it will do this well after it's warmed up. The sluggishness isn't particular to any specific speed can be at 30mph or 60. Code also comes back after an ECU reset. Please help. I'm going nuts.
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Friday, August 17th, 2007 AT 5:58 PM

5 Replies

Tiny
JACK42
  • MEMBER
Did you check the fuel pressure to be sure it is good? At 229k it could very well be time for a new fuel pump
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Saturday, August 18th, 2007 AT 7:43 AM
Tiny
JIMMYV1972
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No I haven't. Is it true then that the pressure could fluctuate to such a degree that sometimes it works, and sometimes it doesn't? And exactly how does that tie in with a good idle. Less fuel pressure?Though there are no associated codes, could the throttle angle sensor also be a contributor? I haven't checked it yet because of the difficulty in getting to the contacts. Thanks alot for your help.
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Saturday, August 18th, 2007 AT 8:58 AM
Tiny
JACK42
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Seen it before, it is just an electric motor afterall. Testing the TPS is a good idea as well, just do it when itis hot and cool if possible, electronics usually have their problems when they heat up. Thinking along the lines of fuel delivery since the o2 sensor is not happy, it might not be able to adjust for intermittent situations. Does the CEL come on right when you start it up after clearing the codes or do you have to drive it?
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Saturday, August 18th, 2007 AT 1:07 PM
Tiny
JIMMYV1972
  • MEMBER
It has to be driven for the code to show up. It'll idle fine forever. I've noticed that if I'm under the hood, and I'm manually adjusting the throttle, it'll bog down. Since I don't completely understand the fuel delivery system, I assume that less pressure is needed for idle than that at open throttle? Almost forgot. Actually just within the last day or so, it has been loping somewhat at idle too; don't believe it's related though.
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Saturday, August 18th, 2007 AT 1:30 PM
Tiny
JACK42
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Fuel pressure should be 30-38 psi with vacuum line connected to the reg and 40-47 with the vacuum line disconnected from the reg. Start by verifying the pressure.
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Sunday, August 19th, 2007 AT 7:37 AM

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