Question about 1999 Honda Accord

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I have a 99 accord that lacks power when I hit a hill. It runs fine and gets good mileage but I have to downshift from 5th to 4th on minor hills. Check engine light is off.

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Howdy, there are a few things on your 99 Accord that could cause that problem. usually all will eventually turn on the check engine light in time. make sure your check engine light is working when the key is first turned to run.

* a partially clogged catalytic converter.
* faulty O2 Sensor (Bank 1 Sensor1).
* low fuel pressure caused by a bad fuel pump, clogged fuel filter(in the tank) or a bad fuel pressure regulator on the injector rail.
*bad ignition switch which can cause intermittent stalls.

now i don't know which engine you have, (i'm guessing a 4cyl.) there were two 2.3L- 4cyl. engines (F23A1 & F23A4) and a 3.0 V6. but if you also have a rough idle or low idle miss, a jumped timing belt can also causing loss of power.

if you know anyone with a scanner that reads the computer datastream, see what the O2 Sensor (Bank 1 Sensor1) is doing & look at fuel trim readings. Also check backpressure on the converter where that O2 Sensor is screwed in.

please let me know if i have helped, totally confused or scared you to death! Good Luck!

Posted on Jun 18, 2009

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Posted on Jan 02, 2017

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