Author | Topic |
Toymods member I supported Toymods
Location: Rydalmere, NSW
Registered: May 2002
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MAP Sensor Issues
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Sun, 13 February 2005 01:16
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I don't know if anyone's had this problem before, but now my car's back on the road again and running much cooler than before, the MAP sensor issues are kicking up again. I'm not sure exactly where the problem lies, but every now and then it will shut the car off at worst, and at other times it will cause a brief hesitation in power. At first I thought it was spark or fuel, but both of those have been good (new fuel pump, new Iriway 8 plugs, dizzy rotor/button and cap are new too).
This issue first came to light when the re-wiring was getting done late last year, and Mos didn't know what the problem was either, but it turned out to be what we think is a dicky wire somewhere in the 3 wires that go to/from the MAP sensor. Now it's getting worse... when it does eventually shut the car off, the conditions it seems to be under are either turning right at low speed (hesitation, sometimes shut-off) and going uphills or a fairly sudden gradient change (mostly hesitation). At first I thought if it was doing it while turning right, the steering column was hitting something, but it's not (power rack-and-pinion), and it's completely in the wrong area. I can't figure it out, but I need to know if the MAP sensor wires route directly back into the ECU or is there a junction in between the MAP sensor and ECU where the problem could be.
I tried the vacuum line leading from the throttle body to the MAP sensor (disconnected it while running), then reconnected it. Seems to only drop the revs a few hundred RPM when it's disconnected.
I wanted to know if anyone else here had the same issues either with a GT-Four or a MAP sensor in general. I want to get an A'PEXi AVCR unit with it's own MAP sensor built-in a bit later on, but first I need to know if anyone's experienced this same problem before.
Thanks.
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| Subject | Poster | Date |
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MAP Sensor Issues
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RAV-GT4 | Sun, 13 February 2005 01:16 |
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Re: MAP Sensor Issues
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Toobs | Sun, 13 February 2005 03:24 |
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Re: MAP Sensor Issues
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RAV-GT4 | Sun, 13 February 2005 03:34 |
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Re: MAP Sensor Issues
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RAV-GT4 | Sun, 13 February 2005 07:31 |
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Re: MAP Sensor Issues
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RAV-GT4 | Mon, 14 February 2005 02:16 |
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Re: MAP Sensor Issues
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CrUZsida | Mon, 14 February 2005 14:08 |
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Re: MAP Sensor Issues
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RAV-GT4 | Mon, 14 February 2005 21:30 |
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Re: MAP Sensor Issues
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CrUZsida | Tue, 15 February 2005 00:30 |
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Re: MAP Sensor Issues
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RAV-GT4 | Tue, 15 February 2005 02:47 |
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Re: MAP Sensor Issues
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RAV-GT4 | Mon, 14 February 2005 13:26 |
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Re: MAP Sensor Issues
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CrUZsida | Tue, 15 February 2005 02:58 |
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Re: MAP Sensor Issues
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Toobs | Tue, 15 February 2005 03:07 |