Mechanics

CHECK ENGINE LIGHT 25,26, AND 71.

1995 Toyota Camry • 257,000 miles

I already replaced of new Distribtor system, ECU, MAP, Idle control solenoid, coolant temperature sensor, spark and spark wire, ignition module. Anyway, my car seem no good idle and misfire, but it drive as speed very good after blue smoke gone few second (valve stem leaks bad). So, how do I test the fuel injection, 1 heat oxygen sensor and 2 oxygen sensor? I allways looking for scanner test. But 1995 Camry had no scanner of OBD2 plug, it a Diagnostic system not easy way to test. It like no reading live Data information, only trouble read code. I hate that, and I can't find clue of engine idle rough still.
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Iancarvalho
October 3, 2012.



You should not have tampered with the stop level screw. That is factory set for the throttle plate to be closed at a certain position. Adjusting it would affect idling and the TPS adjustment.

For idle adjustment, there is another screw on throttle body which is turned to allow more or less air to increase or decrease the idling speed.

KHLow2008
Feb 16, 2013.
Final. My car run so smooth and great engine so even on highway. Last night, we go long trip on turnspike road, it was so really bad misfire long way trip about 2 hours drive for my family's ICU Hospital then we gone home very worse misfire alot at night time, so I pull out the spark's wire for check out. I saw that spark shoot double at wrong place. It was long tip of deep spark wire shape about 4 inch plastic plug, that how made of over head cam for deep hole spark plug, that crazy hard to see of where is misfire from . Anyway, that I found a crazy burst of side so tiny hole from spark wire's plug of side plastic. That hard part of trouble shooter, my god. So, I replace a new spark wire, car's engine run beautiful for now, thank you very much.

Tiny
Iancarvalho
Feb 27, 2013.
Yes, bad plug wires can cause a lot of problems and non OEM wires tends to shorten themselves as you push them into the plug tubes. I would recommend OEM plug wires whenever possible, even a used set is better then after market.

KHLow2008
Feb 28, 2013.
Hi guys, again. It bad news so far, that car was very good idle and drive speed very good but over 50-65 mph seem engine stumbles on acceleration at Turnspike Highway.

Tiny
Iancarvalho
Mar 8, 2013.
Have the fuel delivery system checked, maybe the fuel filter is clogged or the fuel pump is working below efficiency.

KHLow2008
Mar 9, 2013.
Okay, the fuel pump was change 4 year ago for long trip. It still higher pressure fuel gauge reading. It time to change the fuel filter for now.

Tiny
Iancarvalho
Mar 9, 2013.
Now, I believe the ECU not working propertly, because the check engine light code was show Code 41 problem. That I already follow the measure the adjust new TPS sensor with Ohmmeter reads infinity. So far, few hours drive and then stop at parking alot few minutes engine idle hot for awhile and then it feel like the engine's rpm show idle rough a little bit stall and then run normal, rough and normal three times then the engine back normal for light went on for "Intermittent" Codes. I wonder why of always read same Code 41 again. All TPS's connection plug and circuit look perfect work. For now, what you think of ECM?

Tiny
Iancarvalho
Mar 13, 2013.
No respond at yet?

Tiny
Iancarvalho
Mar 17, 2013.
Sorry, did not get your message as I had some problems with my internet service provider for a few weeks.

Intermittent codes can be due to the ECM or a loose wire cnnector somewhere.

KHLow2008
Mar 20, 2013.
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