• Register

AutoCodes.com FREE Android App
Ask OBDII Question
Please write Make, Model and Year of your vehicle

Find local automotive repair shops in your area | AutoCodes.com Local
Need A Repair Shop?
Find local automotive repair shops in your area.
AutoCodes.com Shops

35,515 questions

22,293 answers

883 comments

23,295 users

Top Users

Reynaldo 10,080 Points
Carguy1 5,618 Points
G37driver 3,517 Points
OBDIITech 2,755 Points
OBDtech2 165 Points
corvette-78 127 Points
knowledge 1488 124 Points
Lemuel Alfaro 119 Points
Samat Bekov 117 Points
ptl 113 Points

P0505 TOYOTA - Corolla 2001

When starting my engine in the morning the RPM's drops and car is running like it's been warmed up already for a long time.

Vehicle: 2001, Toyota, Corolla
asked Nov 24, 2012 by anonymous
After I did some research this can be cleaned with SeaFoam. Since I have MAF (Mass Air Flow) cleaner, can I use it? Will it be ok?

2 Answers

P0505 code set

Description

the PCM attempts to control engine speed during KOER self-test
The test fails when the desired rpm could not be reached or controlled during the self-test

Possible causes

IAC circuit open
VPWR to IAC solenoid open
IAC circuit shorted to PWR
damaged IAC valve
damage PCM

Diagnostic Aides

The IAC solenoid resistance from 6 to 13 ohms


 

answered Nov 24, 2012 by corvette-78 (127 points)

and some modle resistance from 17 to 25 ohms at room temperature about 60 F

 

answered Nov 24, 2012 by corvette-78 (127 points)

Related Information

Related questions

1 answer
113 views asked May 21, 2016 by Rob
1 answer
Home - Home - For Shop Owners - About AutoCodes.com - Privacy Policy - Terms and Conditions - AutoCodes.com Feedback - Copyright 2010-2017 AutoCodes.com

AutoCodes.com - HelpForCars.net - Infinitihelp.com - Nissanhelp.com
...