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87 t2 why am i breaking up at 6000- 6500 then clearing up

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Old 05-19-08, 04:30 PM
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PA 87 t2 why am i breaking up at 6000- 6500 then clearing up
titles says it all hellpppp
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Old 05-19-08, 09:40 PM
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I dunno but in my S5 NA I had a 7-8000 rpm hesitation that went way after I cleaned the grounds. Didn't even replace the bolt or any wires, just used an old *** wire brush and some WD40.
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Old 05-20-08, 06:06 AM
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ive cleaned all my grounds tried new coils plugs wires tps checked for vacum leaks but still cant figure it out
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Old 05-20-08, 06:34 AM
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overboosting?
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Old 05-20-08, 04:04 PM
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no more than ten pounds i have a fcd too and 255 walbro
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Old 05-20-08, 04:11 PM
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new plugs and wires fixed mine, ecu was way fat there

i had an fcon+gcc that let me lean it out there, that also fixed it
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Old 05-20-08, 04:17 PM
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well i have new plugs wires arent too far from it
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Old 05-21-08, 09:08 AM
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Check the condition of the connector on the CAS harness.

Are you running lean?
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Old 05-21-08, 02:51 PM
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have your battery load tested. its free at autozone. high rpm hesitations can sometime be caused by a bad battery...try it if you run out of ideas
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Old 05-21-08, 08:54 PM
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new battery and my afr are 11.5-12 at full boost somtimes dipping in the 10s at times given climate
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Old 05-22-08, 09:43 AM
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AFRs in the tens will cause breakup. 12:0 is too rich at 6500 under boost.
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Old 05-22-08, 03:49 PM
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ok i was thinking that somewhat i have 680s in the secondaries and a stock ecu was gonna go to a rtek 2.1 a set 0f 720 or 1000s and a to4b
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Old 05-23-08, 08:47 PM
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bumpity
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Old 06-01-08, 05:39 PM
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so would 12.4 or so cause a rich miss for me. as my rpms go up my afr go down
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