Check engine light 25, 26 and 71.

Tiny
IANCARVALHO
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Oh man, I was wrong type on first one on replied, I mistake about the car running was 38-39 psi for idle with vacuum to fuel regulator then I kick 2000 rpm, read over 45-50 psi as possible, I let go idle back read gauge say again over 38-39 psi. This book say, it must be idle for 31-37 psi. Thank you.

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Friday, November 2nd, 2012 AT 4:54 AM
Tiny
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Yes, the specification is 31- 37 psi while idling with vacuum.

Compression readings are normal.

Check the valve clearances. If you have insufficient clearances, it can cause erratic idling.

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Friday, November 2nd, 2012 AT 2:59 PM
Tiny
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Check the valve clearances. Which one on engine's head valve or IAC?

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Sunday, November 4th, 2012 AT 1:53 PM
Tiny
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Engine valve clearance, tappets are they are sometimes referred to.

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Sunday, November 4th, 2012 AT 3:38 PM
Tiny
IANCARVALHO
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Oh I see, I know that valve lifter had no adjust and hydraulic lifters. It just solid tappets made of Toyota. I'll check the gap of valve clearance. If these come out no good clearance, maybe replace the valve with spring as possible.

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Monday, November 5th, 2012 AT 1:37 AM
Tiny
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No, the adjustment is by replacing the valve shims with required size.
You need to record the clearance of each valve and then measure the thickness of each shim originally on each cylinder and total up (shim thickness + valve clearance).
After subtracting the desired valve clearance, you have the shim size required.

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Monday, November 5th, 2012 AT 4:26 AM
Tiny
IANCARVALHO
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Wow, all the valve look very clearance. Last time, I replaced all the valves, valve's stem and valve's spring at 2004 year. It was 150,000 miles, because blue smoke tail pipe and dirty carbon build-up with bad oil. That happened I brought the Lexus Dealer was lease car before I brought 1995 Camry LE was 34,000 mileage at 1998. I was clean whole engine and rebuild engine kit seals. Today at 2012, Camry over 257,000. I have to remove engine head again to replace the valve's stems seal. I let you know, all valve still good clearance and camshaft look good, and no more carbon build-up. I see 4 clylinder look like oil and little bit dirty carbon and I not sure to replace the clyinder ring, that compressure still good and spark look clean.

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Saturday, November 10th, 2012 AT 2:10 AM
Tiny
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Sorry I am having problem following you.

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Monday, November 12th, 2012 AT 2:14 PM
Tiny
IANCARVALHO
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Okay, valve clearance. All look fine, but all the valve stem bad and hardend as crack for leaking oil in cylinder. That blue smoke from tail pipe really bad, so then I will replace the valve stem seals and cleaning up the engine till put back on engine block later. Let see, if the fuel pressure regulator is not within specifications for 1995 vehicles, 31-37 psi. If out of limit, replace fuel pressure regulator. Because the engine run idle with vacuum hose on fuel regulator, test was read 38-39 psi. That problem out of limit 31-37 psi, right.

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Monday, November 12th, 2012 AT 4:27 PM
Tiny
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Yes, the fuel pressure is slightly out of limits and could cause a little rich running conditions.

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Monday, November 12th, 2012 AT 6:34 PM
Tiny
IANCARVALHO
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Okay, I already to replaced a new fuel pressure regulator. And change all new valve stem seal, it no more blue smoke from tail-pipe. It look pretty good, but the engine still funny misfire something wrong and like to drive on high way really smooth. Most time to stop traffic light, it feel something weird misfire of little stall but engine still not stalling at yet and check engine light never show anything as possible, nothing. I wonder why? I already to remove engine head from block for change the valve stem and cleaning all the block and head, also valve clean too.

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Sunday, November 25th, 2012 AT 4:41 AM
Tiny
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Misfiring and erratic idling are 2 diffferent symptoms and I do not know which is the exact problem, can you reconfirm?

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Sunday, November 25th, 2012 AT 9:25 PM
Tiny
IANCARVALHO
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No, it not erratic idling. Right now and still misfire something go on. It like no misfire few second till misfire again somtime after stop at traffic light. Okay, First I start the cold engine go up a little bit 1000 rpm till go down lower at 800 rpm so short time, (3 second warm start). So, I don't see anything no more smoke from tail-pipe, because I rebuild new valve stem look nice. Anyway, I drive the car fast to go so good about 1 mile and then stop car at parking lot, these engine seem misfire again, it sound misfire so many time. I do believe the fuel injector problem. Not sure, I never replace all fuel injector, only clean and test 12 voltage battery connetion at spray gas pressure seem look good and test ohm meter, read measure the resistance of each injector should good. It funny man.

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Monday, November 26th, 2012 AT 5:26 AM
Tiny
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Recheck the spark plug and wires. Have the wires ohmed out and see if any has a problem. Ensure the wires are tight and snug when plugged in.

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Monday, November 26th, 2012 AT 3:55 PM
Tiny
IANCARVALHO
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Well, I check many times with whole new sparks, distribution body complete replaced, and spark wire change too. All ignition module system too. I did pull off each spark wire from engine run idle sound different missing spark for test spark outside. So, it normal to put back on each test spark. This time, I order the new Equus Products Digital Timing Light gun from Sears. I will set timing right. That because I changed the new distribution body without set timing last six mouth ago. Maybe timing set pretty off little bit degrees. I let you know. If these timing set right or not, then I will check fuel injector each test. Do you think I have to find how I am going to do with fuel injector test with contect signal or flashing light something?

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Monday, November 26th, 2012 AT 11:10 PM
Tiny
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Incorrect ignition timing can result in erratic idling as if the engine is misfiring. I don't think you need to test the ignition signals because the signals are good based on what you have. If it is a fault with the injectors, it most probably is the injector is either clogged and sending too little fuel or it is not closong correctly causing excessive fuel to be dumped in.

However your description seems to point to ignition sparks rather than fuel problem.

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Tuesday, November 27th, 2012 AT 3:48 PM
Tiny
IANCARVALHO
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All right, I check a fuel injector connection plug out of each for test to start engine idle go missing and rough cylinder, count fuel #1 rough, #2 misfire, #3 rough, #4 rough idle. It look seem #2 misfire as same like before that. I think #2 fuel injector not working right, when I plug out #2 fuel connection plug go misfire so far, random misfire. I'm no experience be mechanic better. Not sure, it that reason misfire as possible.

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Sunday, December 2nd, 2012 AT 10:01 PM
Tiny
IANCARVALHO
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Ok, I found out that not fuel injector and ignition too, both still good. And engine light does not of any code at yet, it normal. I believe the engine head's problem, bad head possible. It really misfire, that I rise a feeling the engine's 1,500 rpm with my foot panel at parking a lot. Wow, I didn't know not to drive test like that, because it so smooth on the road. Park a lot it different feel engine misfire.

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Monday, December 3rd, 2012 AT 2:23 PM
Tiny
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Have you tested the compression?
Check the valve clearances.
Check the EGR, try disconnecting the vacuum of the EGR valve and plugging it.

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Monday, December 3rd, 2012 AT 7:41 PM
Tiny
IANCARVALHO
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All right, I was so idiot not to used my finger tip at feeling on valve lifter clearance, it so smooth shim from camshaft. Now, you are right about that. I brought the feeler gauge 26 blades. So, I found out, it feel shim under cam measured. Number Intake were 1).009, .008 ; 2).009, .011 ; 3).008, .008 ; 4).008, .008 ; Exhaust were 1).009, .005 ; 2).011, .011 ; 3).008, .009 ; 4).012, .012 ;. Done right now, I am shock my wife really good to fine online, they have a shim parts order service. Toyotapartsoverstock. Com. And I already check EGR were look good and compression too.

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Saturday, December 8th, 2012 AT 6:31 PM

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