87 Sr5 22re Starting problem, idle problem.

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Mar 17, 2012 | 01:43 PM

#21

Jeffrey87

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Yes there is vaccum at fuel pressure reg, didnt take much effort to pull my finger off the line though? how strong should the vaccum be

Mar 17, 2012 | 01:49 PM

#22

Jeffrey87

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and yes the cor is clicking loudly on and off, do i need to test it further then that?

Mar 17, 2012 | 02:09 PM

#23

4Crawler

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Quote:

Originally Posted by Jeffrey87

Yes there is vaccum at fuel pressure reg, didnt take much effort to pull my finger off the line though? how strong should the vaccum be

It should be the same as at the intake, so compare a hose right off the intake to the one off the FPR. And you should notice a change in idle with the vacuum disconnected from the FPR, engine should load up and run rich. With a gauge, idle vacuum is typically around 20in.Hg.

Mar 17, 2012 | 02:10 PM

#24

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Quote:

Originally Posted by Jeffrey87

and yes the cor is clicking loudly on and off, do i need to test it further then that?

That means the coil is intact and the relay is clicking on and off. But that does not mean the relay contacts are making good contact and sending enough current to the fuel pump. And it is that clicking that you may not hear when it is not starting, if so, look into the COR relay and circuit more.

Mar 17, 2012 | 02:36 PM

#25

Jeffrey87

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okay so the testing the AFR, the static tests are fine, and the dinamic tests seem wrong to me, it jumps all over the place. could this be my problem?

Mar 17, 2012 | 02:42 PM

#26

Jeffrey87

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.570 on 2K ohms, on dinamic test # 2, says it should be 20-400? this looks like a problem?

Mar 17, 2012 | 02:45 PM

#27

Jeffrey87

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test #2 dinamic, closed is 400 and it goes up to about 1000 up down up down then down to 300 at fullly open?

Mar 17, 2012 | 02:46 PM

#28

4Crawler

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Quote:

Originally Posted by Jeffrey87

okay so the testing the AFR, the static tests are fine, and the dinamic tests seem wrong to me, it jumps all over the place. could this be my problem?

As noted:
- http://www.4crawler.com/4x4/CheapTri...tml#AFMtesting

Quote:

On test #2, you should see the resistance generally increase as the AFM plate is moved from closed to open, but it may not be in a smooth linear fashion. The resistor track in the AFM is laser trimmed for calibration at the factory and you may see sections where the resistance first increases, the drops down a little before increasing some more. What you want to watch for are places where the resistance drops below 20 or above 1000 ohms (for example if it goes to infinite/open circuit) as that would indicate a problem.

And that only comes into play when you open up the throttle while driving. At idle, the AFM does not do a lot other than close the Fc contact to keep the fuel pump running.

Quote:

test #2 dinamic, closed is 400 and it goes up to about 1000 up down up down then down to 300 at fullly open?

Well, 400 is in the range of 20 - 400 when closed and 300-1000 is in the range of 20 -1000 from closed to open.

Last edited by 4Crawler; Mar 17, 2012 at 02:51 PM.

Mar 17, 2012 | 02:50 PM

#29

Jeffrey87

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Quote:

Originally Posted by 4Crawler

As noted:
- http://www.4crawler.com/4x4/CheapTri...tml#AFMtesting

And that only comes into play when you open up the throttle while driving. At idle, the AFM does not do a lot other than close the Fc contact to keep the fuel pump running.

but it jumps down to 300 at fully open, and sits at 400 closed?

Mar 17, 2012 | 02:53 PM

#30

4Crawler

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Quote:

Originally Posted by Jeffrey87

but it jumps down to 300 at fully open, and sits at 400 closed?

300 is in between 20 and 1000, 400 is in between 20 -1000, as long as the readings are IN BETWEEN 20 and 1000 ohms, that is what it is. Now if it read 100,000 ohms or 0.1 ohms, that would be an issue.

Mar 17, 2012 | 03:26 PM

#31

Jeffrey87

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good beacuse a new one is 400, so check my cor further and if thats okay whats next? fuel rail leak?

Mar 18, 2012 | 03:17 PM

#32

Jeffrey87

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i pulled out what i thought was my co relay, and tested it and it is the problem if it is the right relay, it was to the left with the glovebox removed, it is has 5 connecters like the co, is black, and reads: relay toyota 90987-04002 ND 056700-6780 12V

is this the correct relay? or is it the impossible to acsess relay above the ecu? ill try and get that out and see how it goes.

Mar 18, 2012 | 03:20 PM

#33

4Crawler

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http://wiki.answers.com/Q/What_is_th...lay_for_Toyota

Mar 18, 2012 | 03:39 PM

#34

Jeffrey87

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just figured that out and found the co relay, and it tested fine. im starting to think its my ignition switch or starter? maybe its a bad connection, but i checked the power wire to starter and it was fine. but starter seemed to be turning the motor over slower now then it did when i bought it.

Mar 18, 2012 | 03:49 PM

#35

Jeffrey87

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then again, i jumped it ( fp to B+ ) to send power to fuel pump and it fired up 3rd crank. ahhh i dont wanna end up relplacing everything to find out it was something simple.