CHECK ENGINE LIGHT 25,26, AND 71.

1995 Toyota Camry

Tiny

iancarvalho

January, 5, 2013 AT 9:27 PM

Happy New Year, And I really so upset of my car Camry not getting better at all, funny. I replaced new VSV control, EGR gas temp sensor, and EGR Modulator. It seem that I found out the engine stalling after stop on the road. So, I pull over the side road for checking out, that I pull off the vacuum hose on top EGR Valve sound like hold so enough, then I heard vacuum air release of EGR start close. "Pop!" I drove again same thing stalling second time, Remove hose of EGR Vacuum to release sound, "Pop again!" So, I don't use EGR Valve without vacuum hose. I drove on the road till no stall, back home at park alot. I believe the VSV system not working property, something not right with ECU. These car still misfire at idle engine running, but high speed or racing still good on the highway with no EGR vacuum that EGR still close all days. I wonder the engine problem.

Tiny

KHLow2008

January, 6, 2013 AT 6:53 AM

Check the VSV hoses installation. Reversed installation of the hose can result in vacuum not releasing after the solenoid is activated and released.

Tiny

iancarvalho

January, 18, 2013 AT 2:03 PM

Okay, the VSV was a wrong line to reverse of connection to EGR and back around from Modulator line. EGR seem working better. But I drove the car few minute seem cause the engine stall so bad on the road. Then back home without EGR line again. I found ASV Valve air leaking louder, never heard before. It falling part, that rare part I ever heard for air condition idle-up valve replaced. Then again code 41 came out engine light. It was very low idle less then 700 rpm. Because replace ASV Valve. I move TBS for little more idle run about 900 rpm. So, it pretty misfire weird few second at warm and some time engine stall at stop traffic with EGR.

Tiny

monicacarvalho

February, 3, 2013 AT 10:27 PM

Hello guys. My car had a little trouble of erratic idling again many time after stop traffic light on the road. One day, the engine light code came out 41. It a TBS trouble again. I don't know how I doing for these test. I already replaced TBS sensor. But it doing same problem of code 41 again. Sometime engine stalling and erratic funny.

Tiny

KHLow2008

February, 4, 2013 AT 3:48 PM

When was the TPS replaced?
Were the wires and connectors checked?

Tiny

iancarvalho

February, 4, 2013 AT 4:22 PM

TPS was replaced last 1 mouth and connection plug look fine. I don't know of what is cause. So, I will check the wire from TPS's end connection plug to ECU Black box terminal.

Tiny

KHLow2008

February, 4, 2013 AT 4:33 PM

Let meknow how it goes.

Btw was the TPS adjusted correctly?

Tiny

iancarvalho

February, 4, 2013 AT 5:20 PM

The book said, Using an ohmmeter, measure the resistance, between the indicated terminal pairs a (0.028 in.) Feeler gauge between the throttle stop screw and lever, and connect the ohmmeter to terminal IDL and E2. So, I don't know what is mean "Infinity" reading for ohmmeter resistance. It about the idjusted.

Tiny

KHLow2008

February, 5, 2013 AT 5:59 PM

Infinity means there must be resistance shown and not zero.

Tiny

iancarvalho

February, 16, 2013 AT 11:54 AM

Okay, I adjust the TPS is okay and I found out that I have timing light for reading rpm very low at 556 rpm. That book say must be 750 rpm with jumper terminals E1 and TE1 on the SST test connector. I adjust the stop level screw for read 755 rpm. So, that reason of rpm very low, that cause the engine stall with EGR on. Now, EGR work much better with engine idle but for awhile few minute again. It feel like again, the engine idle miss few second more then smooth, it like missing three times and then no missing, and few 5 second missing three time or less. It very wierd and no clue of where this come from. All I do everything check look fine and no engine light code at yet. My wife try tell me, "Maybe fuel filter need to change for now". I told her, " I got a test fuel gauge reading very good high pressure". Man, I don't understand all no clue.

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