2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

I need help, car wont start

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Old 10-21-10 | 11:41 AM
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awesome, now i gotta go buy the multimeter
Old 10-21-10 | 03:16 PM
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okay now that i have the multimeter where exactly am i plugging this in to get whatever readings i need?
Old 10-21-10 | 03:31 PM
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Page 54 http://www.teamfc3s.org/main/factory...SYSTEMS_NA.pdf
Old 10-21-10 | 04:15 PM
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okay im measuring and ive found that the measuring plate does not open smoothly it needs some force to open, i am posting s video to show you what i am referring to
Old 10-21-10 | 04:33 PM
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<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/el1jLusA1j4?hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/el1jLusA1j4?hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

you can see that the plate does not open without force
Old 10-21-10 | 04:58 PM
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Fubar. Doesn't have full range, needs replacing regardless. Probably something snapped inside. Did you get any resistance readings across the pins? It'd probably idle without being able to move fully, but if the rheostat broke inside, it's not going to play. You definitely need a new one, but let's see what the readings are before calling it quits.
Old 10-21-10 | 05:04 PM
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wasnt reading anything just staying at 0.00 unless im doing it wrong
Old 10-21-10 | 05:43 PM
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is it supposed to read 0.00?
Old 10-21-10 | 05:56 PM
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You may be doing it wrong... make sure the multi-meter is set to read resistance (ohms) aka... omega sign.... aka upside down horseshoe. And that the resistance setting is somewhere in the 1000k region of ohms, then probe the AFM as instructed per the FSM

If it still reads 0.00 then yea, your AFM is totally screwed and that is absolutely definitely your problem, er, one of your problems.

If the AFM should read absolutely zero across the board for all the probing points that the FSM says (highly highly highly unlikely) that and the fact that your tach suddenly spiked makes me wonder if there is a larger electrical issue here at play.
Old 10-21-10 | 06:05 PM
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well the fact that the plate doesnt open explains a lot. let me try probing again
Old 10-21-10 | 06:17 PM
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e2-vs reads 280 ohm

e2-vref reads 279ohm

e2 - tha reads 1663


e1-fc reads nothing
e2-vs reads nothing.
Old 10-21-10 | 06:33 PM
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Ok, what does are the resistance results in the next test?

does e1-fc read nothing or infinity?

Id replace the thing anyways, if the plate wasnt moving freely then it isnt going to give a proper reading to the ECU
Old 10-21-10 | 06:37 PM
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e1-fc read nothing, never changes.

and whats the next test?
Old 10-21-10 | 06:40 PM
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does it float?
Old 10-21-10 | 06:47 PM
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um...float?
Old 10-21-10 | 07:06 PM
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okay seriously whats next?
Old 10-21-10 | 07:21 PM
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Well your AFM seems to be within spec, but since the measurement plate is fubar you are going to need a new one.
Old 10-21-10 | 07:25 PM
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would that be the reason why those last two dont read anything? because of the plate not functioning?
Old 10-22-10 | 05:00 PM
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I could only speculate about that. Try getting another AFM on there for grins and see if it fires up and stays running. In the meantime, wire in a fuel pump kill switch so you can still start the car when it floods like crazy and start saving money for the next problem....
Old 10-22-10 | 07:41 PM
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sounds like a plan, the new AFM is gonna cost me about 120+tax with my autozone discount anyone know of a cheaper one?
Old 10-22-10 | 09:44 PM
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Post a wanted add for a used one, search the for-sale section, or go to a scrapyard. S4 NA afm should be cheap and common.
Old 10-23-10 | 12:28 AM
  #122  
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okay thanks, i hope this solves my problem so i can get moving again, you guys have been extremely helpful and patient with me
Old 10-23-10 | 02:56 PM
  #123  
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Okay so I got the part let's see if it will get the car running
Old 10-23-10 | 04:28 PM
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Any news?
Old 10-23-10 | 05:13 PM
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i have to get a jump my battery is dead. I'm going to deflood the car once more and try to start it up. I will let you know what happens after


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