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P0202 and P1155 codes

Tiny
DRIFTERDRUMMER
  • MEMBER
  • 2004 HYUNDAI SANTA FE
  • 3.5L
  • V6
  • 4WD
  • AUTOMATIC
  • 12,000 MILES
Okay, started out as would not idle also threw a p0202 code. Fixed the injector wiring and installed new injector. Got a new battery. Now it somewhat idles at 1000 rpm. Took it to get re-scanned. Now it throws me two codes 1. P0202 and now a P1155 code. I think the injector is stuck open because I smell gas now when I am driving but checked under good. No leaks. When I turn off it is smoking out of tail pipe so the injector circuit must still be stuck and dumping fuel into the cylinder giving me the gas smell and the smoke put of the tail end. Also need help with the p1155 limp mode code. Please help!
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Monday, September 12th, 2016 AT 10:50 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
See picture for cause for p202 may be a bad PCM or a wiring problem yet p1155 is throttle position actuator stuck closed. But code has been changed /modified from manufacturer. Try cleaning throttle plate on both sides and IAC hole with choke cleaner that may straighten it out. It also may be the the throttle pedal giving this code.
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Monday, September 12th, 2016 AT 12:13 PM
Tiny
DRIFTERDRUMMER
  • MEMBER
  • 15 POSTS
That was a P0202 code and a P1155 limp mode code.
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Monday, September 12th, 2016 AT 3:18 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
The P1155 is the air mixture heater circuit failure, just replace the sensor. Here is a guide that will help you

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

Please let us know what you find so it will help others.

Best, Ken
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Thursday, September 15th, 2016 AT 12:43 PM

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