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dtc and stuttering help... desperately needing help. kinda LONG

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Old 07-09-2004, 09:01 PM
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Default dtc and stuttering help... desperately needing help. kinda LONG

I finally got my car back together after a couple changes. I have a map clamp installed, and Im thinking it may be one of my problems.
I also was messing around quite a bit with the map(pressure) sensor, so this sensor may be broken. Do these sensors ever break internally?
I also got codes regarding the throttle body, im pretty sure, but when I cleared them they didnt come back the second time around. Could this be a throttle body slowly dyinh?
Well, to help diagnose the problem i'll list the codes.
first time around:
17952-angle sensor 1 for throttle actuator (g187): signal too large
p1544 - 35-10--- intermittent
17580- angle sensor 2 for throttle acuator (g188) signal too low
p1172 - 35-10---intermittent
16622-manifold pressure/boost sensor (g31): signal too high
p0238-35-10---intermittent

second time, after clearing codes:
16621-mainfold pressure/boost sensor (g31): signal too low
16490-manifold/barometric pressure sensor (g71)/(f96): implausible signal
p0106-35-00--


When the car got up to temperature I tried to give it a little boost. Right when it was about to break out of vacuum (0 on the gauge), it completely stuttered, and jerked. I came in and turned it off.

The work that was done was:
-timing belt service
-map clamp
-replaced throttle body
-replaced intercoolers

It was presure tested and held the pressure nicely. Please let me know anything as im kinda lost at this point. appreciate any input

thanks, chris
Old 07-09-2004, 09:11 PM
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Default that could be related to the map clamp if it wasn't done properly

did you do it yourself?
Old 07-09-2004, 09:26 PM
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Default of course : )

have you messed with a map clamp yet? I am using the split second one which is adjustable. I adjusted it all the way to the highest point, since I didnt want to use it yet; 6 volts. My plan was to turn it down to 4.9 when I got my problems solved and mbc installed. I have a voltmeter. Can you tell me what i am to expect for voltages when running, or key in ignition, to see if all the wires are good.

Do you have any suggestions to these problems?
throttle body?
map sensor?
timing off?
Old 07-09-2004, 10:07 PM
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Default sounds like you turned it all the way in the wrong direction. Try it turned all the way opposite,

Maybe SS built one in reverse???
Old 07-09-2004, 10:14 PM
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What's wrong with puncturing your gas tank?
Old 07-09-2004, 10:30 PM
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Default Did you do a throttle adaptation? And is this how your MAP was installed?

<center><img src="http://pictureposter.audiworld.com/50830/map1.jpg"></center><p>Where, precisely in the intake tract is this installed? This MAP installation just doesn't seem to sit right with me.
Old 07-09-2004, 10:41 PM
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Default meh... Well, he's trying. That's the best way to learn IMO.

Can be a bit more expensive way, but knowledge and lessons learned can be invaluable.

He did do some quality work on his headlights and manufactured a damned nice water box out of aluminum.
Old 07-09-2004, 10:47 PM
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I was thinking that, cringing, that looks nowhere near the TB. Glad someone else noted that.
Old 07-09-2004, 10:51 PM
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Yeah, I was just messing wit him on Jacob's name
Old 07-09-2004, 10:53 PM
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Default yeah, but the best learning takes place with someone who has done it before

that way you dont make the costly mistakes of others, but still gain knowledge


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