Car idles hard when I stop at the light. Code: PO130

Tiny
ABRICHUK
  • MEMBER
  • 1998 ACURA TL
  • 145,000 MILES
I recently bought a my 1998 acura tl. Everything was good till the last few weeks ago. The car started to idle really hard and the rpm go up and down when the car isnt moving. When the check engine light came on, I took it to a mechanic and he said to replace both O2 sensor. He reset the check engine light. The person I bought the car from, replace both O2 sensors before selling it to me. Plus I replaced the back one. A week later the light came back on with this code: PO130. I talked to some of my friends and one suggested that my EGR valve needs to be replaced. Another guy told me that my fuel pump may need to be changed. Any advice as to what is wrong with the car is greatly appriciated.
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Tuesday, November 22nd, 2011 AT 6:28 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It has to do with the o2 heaters. If, assuming the first one was in fact bad, it was a bad heater. It may have blown a fuse which no one has checked, at least there is no mention of it.
Stop throwing parts at it and listening to peoples guesses that are not anywhere near accurate.

Check the fuses with a test light first. If they are ok, check the wiring of the sensor to make sure no wires are broken.

I really suggest going to another shop that will give you a real diag with a pinpoint failure for you so you know exactly what to repair.

Roy
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Tuesday, November 22nd, 2011 AT 6:37 PM

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