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1998 Honda Accord No power, has a miss

Tiny
2000ROUSH
  • MEMBER
  • 1998 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 106,000 MILES
I have a 98 Honda accord ex with a 4 banger, I replaced the IAC and cleaned the egr, due to the car running like crap and not being able to drive it.

Now a code comes up that says the bank 1 sensor 1 is bringing up a code. I removed the Cat and looked in it and I can see light all of the way through it and around it inside.

The exhaust get real hot at the tail pipe and I have a cheap scanner and it tells me that the loop is closed after it is warm and stays closed till I hit the gas and the rpms start to drop then it runs open loop for about a second.

Could it be fuel pressure reg, TPS, O2 sensor or clogged egr port?

I am not getting any other codes right now.

When I replaced the IAC and cleaned the egr I drove it and I cant get it past 40 mph and it hesitates real bad at low rpms.
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Friday, September 18th, 2009 AT 10:14 AM

9 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi 2000roush,

Thank you for the donation.

Can you please let me know the exact trouble code retrieved? That might throw some light on the problem.
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Friday, September 18th, 2009 AT 1:14 PM
Tiny
2000ROUSH
  • MEMBER
  • 6 POSTS
I think it was P0141
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Friday, September 18th, 2009 AT 2:04 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
P0141 indicates a fault with the secondary HO2S heater circuit.

Was any other repairs performed?
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Friday, September 18th, 2009 AT 2:35 PM
Tiny
2000ROUSH
  • MEMBER
  • 6 POSTS
What I did was clean the EGR valve, replaced the IAC and removed the cat to see if it was plugged. This problem has been on and off for months. I did not disconnect the battery to reset the computer when I did this so I was going to try that next. When I removed the cat I started the car and it seemed to run alot better but I could not drive it so I dont know if that may have been an issue.

I can shine a light on one side of the cat and see light everywhere and does not seem blocked in any way.
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Friday, September 18th, 2009 AT 2:50 PM
Tiny
2000ROUSH
  • MEMBER
  • 6 POSTS
I am not sure what else to do
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Friday, September 18th, 2009 AT 4:19 PM
Tiny
2000ROUSH
  • MEMBER
  • 6 POSTS
I got the car running again and I replaced the spark plugs and it seems to have more power but still not what it should be, I was told the VTec Silonoid could be bad but no code came up for that. I drove it about 6 miles and I can stay at 60 mph but takes for ever to get there. I tried the uplugging the TPS and map and the car dies so that leads me to think they are ok. I checked for the fuel pump working and it works but I am testing the pressure tomorrow. I am getting to the end of my rope so any help would be great.
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Friday, September 18th, 2009 AT 10:07 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Sorry for the delay.

If the VTEC is not working, you would have very little power but usually this would emit a troble code.

Since replacing the spark plugs made the engine slightly better, test if the sparks are bright blue. A weak coil would cause lack of power.

A faulty secondary HO2S can cause performance issues. Since you did not reset the ECM do so and recheck for trouble codes.

If you had done the fuel pressure test, let me know if it is within specs. If no codes and the problem is there, the last resort is to get the freeze frame data to analyse what is out of specs.

TPS could be ok at idling but the throttle opening could be inaccurate.
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Saturday, September 19th, 2009 AT 7:29 AM
Tiny
2000ROUSH
  • MEMBER
  • 6 POSTS
Thanks for all of your help, it was a bunch of problems mixed together. The V-Tec valve was stuck, Fuel pressure reg was bad, O2 sensor was bad (Bank 1) and the TPS was out od calibration, I reset it and runs great now, thank you for all your help.
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Monday, September 21st, 2009 AT 9:17 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Wow, glad to know that you managed to resolve so many faults at one go to get the vehicle running well again.

Your input is very much appreciated.

Thank you for using 2carpros.
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Monday, September 21st, 2009 AT 9:43 AM

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