1991 Mustang GT

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CarGuru > Ford > 1991 Mustang GT 13 April 2005 00:19:35

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1991 Mustang GT
William Everette via CarKB.com 8 April 2005 10:17:43
	Wife said car(and I verified) that she lost speed control, got a check engine light, and the transmission doesn't want to respond correctly (ex. slow to engage when accelerating after having slowed down for an off ramp, or speeding up to pass). First engine scan gave the following errors: KOEO Codes- 23 Throttle Position Sensor is out of range Memory Codes- 31 EGR valve position or exhaust pressure transducer sensor voltage low 63 Throttle Position Sensor voltage too low or grounded KOER Codes- 12 Cannot control RPM during self check or Idle Speed Control Problem 23 Throttle Position Sensor is out of range Cleared codes, unplugged TPS and scanned a second time and got these errors: KOEO Codes- 98 Electronic Pressure Control driver failure in control module (or hard fault) 63 Throttle Position Sensor voltage too low or grounded Memory Codes- 11 System Pass KOER Codes- 12 Cannot control RPM during self check or Idle Speed Control Problem 23 Throttle Position Sensor is out of range It's having issues obviously, but it's the Memory code 11 that throws me. That seems to signify that the electronics are fine but the 98 seems to mean everything is screwed. This car has some age on it but was kept (I though well) by the previous family member. Could the TPS, EGR and Speed Control all be bad at the same time? Or am I looking at a bad ECU supplying bad voltage to the sensors? I thought I was looking at replacing an ECU at first. All the parts put together aren't too much to replace, but I'd prefer a simple fix. Yes, it passed a wiggle test. -- Message posted via http://www.carkb.com
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Backyard Mechanic 9 April 2005 06:25:17 [ permanent link ]
	Well, the first thing i'd do is borrow or buy a dvm and confirm 5 v and grd at the TPS and that the sense wire varied. If you've had the car a while and never changed the TPS, it's probably due anyway. -- - Yes, I'm a crusty old geezer curmudgeon.. deal with it! -
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Guest 9 April 2005 06:41:46 [ permanent link ]
	On Sat, 09 Apr 2005 02:25:17 GMT, Backyard Mechanic <pettyfog@Yaywho.com> wrote: Well, the first thing i'd do is borrow or buy a dvm and confirm 5 v and grd >at the TPS and that the sense wire varied.> If you've had the car a while and never changed the TPS, it's probably due >anyway. lmfao replacing a good part lmfao yup good advice just through parts at it BWHAHAHAHAHAHAHAHAHA hurc ast
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Guest 9 April 2005 20:52:29 [ permanent link ]
	On Sat, 09 Apr 2005 16:04:28 GMT, Hampton <rjw@hic.com> wrote: What's sadder (for hurc) is that he probably is some 45 year-old with a >kid in college.> lmfao> nice grammer whats a"sadder"????? bwhahahahaha tard hurc ast
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Hampton 9 April 2005 21:40:22 [ permanent link ]
	hurricane 575 @ihotmail.com wrote in news:9p1g51lgrv682tec7r9f7vckfkthp8oqo1@4ax.com: On Sat, 09 Apr 2005 16:04:28 GMT, Hampton <rjw@hic.com> wrote:> What's sadder (for hurc) is that he probably is some 45 year-old with a >>kid in college.>> lmfao>> nice grammer> whats a"sadder"?????> bwhahahahaha> tard> hurc ast> Again, you scribble something down and show your stupidity. http://www.m-w.com/cgi-bin/dictionary?book=Dictionary&va=sadder It's an adjective to describe the grief and unhappiness your family would feel if they saw all the tripe you spew.
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William Everette via CarKB.com 10 April 2005 00:39:50 [ permanent link ]
	As cheap as they are. I replaced the TPS and EVP. EVP code changed from 31 to 34 (voltage too high, it was reading too low). I cleaned the EGR and got it moving smoothly enough that vacuum will move it. Cleaned IAC but still getting code 12. TPS showing good voltage and variation. Still getting code 63 for TPS. No more code 98. Still looking like either it all needs replaced, or the ECU is acting odd. got 12.5 volts at IAC. Is there any way for me to test the IAC? AFAIK, this TPS is non-adjustable. It's putting out the highest voltage at idle. And reduces as I increase throttle. Is this correct? -- Message posted via http://www.carkb.com
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William Everette via CarKB.com 10 April 2005 00:59:00 [ permanent link ]
	Replaced the IAC. Code 12 is gone. Next. -- Message posted via http://www.carkb.com
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William Everette via CarKB.com 10 April 2005 01:04:21 [ permanent link ]
	This is the current scan info. O,R,C code 34 - EGR Voltage High or sensor fault C code 63 - TPS voltage too low or grounded -- Message posted via http://www.carkb.com
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Guest 10 April 2005 05:47:58 [ permanent link ]
	"Grammar". Spelling lesson over. -Mike -- Melt away the Cellulite with Cellulean! http://www.MeltAwayCellulite.com/ <hurricane 575 @ihotmail.com> wrote in message news:9p1g51lgrv682tec7r9f7vckfkthp8oqo1@4ax.com...> On Sat, 09 Apr 2005 16:04:28 GMT, Hampton <rjw@hic.com> wrote:> What's sadder (for hurc) is that he probably is some 45 year-old with a> >kid in college.> > lmfao> > nice grammer> whats a"sadder"?????> bwhahahahaha> tard> hurc ast
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Stephan Rose 11 April 2005 16:38:24 [ permanent link ]
	On Sat, 09 Apr 2005 21:04:21 GMT, "William Everette via CarKB.com" <forum@CarKB.com> wrote: This is the current scan info.> O,R,C code 34 - EGR Voltage High or sensor fault > C code 63 - TPS voltage too low or grounded Can you check the actual EGR and TPS Voltages? Post some numbers? -- Stephan 2001 Yamaha YZF-R6
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William Everette via CarKB.com 13 April 2005 00:19:35 [ permanent link ]
	I need to swap out the TPS. Auto store gave me the wrong one. I'll get voltages tonight if it doesn't rain. -- Message posted via http://www.carkb.com
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CarGuru > Ford > 1991 Mustang GT 13 April 2005 00:19:35

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1991 Mustang GT

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