Code P0102

Tiny
LOREN STOVER
  • MEMBER
  • 2008 TOYOTA YARIS
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
The car is a Toyota Scion which wasn't a choice when I picked model but it has a p0102 code and I replaced the MAF sensor and there's no change. I also checked for 5 volt reference and it checked out. Oh, by the way when I tried to erase code it would not go away. Stuck now and can't figure it out.
Thursday, March 18th, 2021 AT 2:38 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,071 POSTS
Hi,

I assume this is a Scion xD. It is the only one with the engine you provided.

The problem can be a few different things. The only way to determine where it is coming from is to follow a diagnostic flow chart and check one thing at a time.

The pics below are the diagnostics and pics related to the tests. Let me know if you are comfortable doing it.

I hope this helps. Let me know if you have other questions.

Take care,

Joe
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Thursday, March 18th, 2021 AT 8:04 PM
Tiny
LOREN STOVER
  • MEMBER
  • 130 POSTS
You are correct about the car and I am very comfortable doing these tests especially with a multimeter. Thank you for your help and I'll get back with you about the results.
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Friday, March 19th, 2021 AT 9:47 AM
Tiny
LOREN STOVER
  • MEMBER
  • 130 POSTS
Thank you so much for your help. Problem solved it was the EFI 2 fuse it was just misplaced so I put another one in there and it runs perfect now.
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Friday, March 19th, 2021 AT 11:43 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,071 POSTS
Hi,

Glad to hear you got it running. Please feel free to come back anytime in the future if you have questions. You're always welcome here.

Take care,
Joe
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Friday, March 19th, 2021 AT 7:04 PM

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