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post #1 of 6 (permalink) Old 10-22-2006, 12:44 PM Thread Starter
Join Date: Oct 2006
Location: houston
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Exclamation help

i replaced intake manifold checked all vacuums, engine idels fine but when you
push thr gas it runs rough.
icouldreally need some help
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post #2 of 6 (permalink) Old 10-22-2006, 01:32 PM
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is there any coolant in the plug holes, take an air compressor and pull out the plug wires and blow in them, that is a comon quick problem that it could be, if it doesnt wix it sorry wait for other ideas

96 pearl white 4.6 tbird: rebuilt npi block with pi heads, pi intake, crower stage 2 cams, shm high lift springs, L-MAF, 3.73's, marauder converter, jmod, kooks headers, xpipe, no cats, 2.5 in exhaust, no mufflers, a dyno tune, lots of interior work, 1 in drop with lots of new bushings, 18 in rims. 279 hp 319 tq. curently running 13.9 at 101 mph with a 2.1 60 time in 100 degree weather while having some nasty spark knock. Soon to have higher stall, aftermarket intake manifold, weight reduction, and hopefully a nice shot of the giggle gas.
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post #3 of 6 (permalink) Old 10-22-2006, 04:48 PM
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try cleaning for maf sensor and see what that does. If that dont work the like he said wait for other ideas.
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post #4 of 6 (permalink) Old 10-22-2006, 04:52 PM
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It doesn't run rough at an idle????Check all vacuum lines and look for a leak.Use a spray bottle to check them.

04 PI swap,SVO Supercharger 8-9 psi,Alcohol injection,39lbs Cobra injectors,XCal2-Walbro 255 LPH fuel pump,4.10 T-Lok,2003 4R70W built to withstand by RobertP,450hp JMOD,3800 circleD stall,trucool 4739 Trans Cooler,Dynotech 3.5 Driveshaft,70mm T/B,SCP Cold Air Intake,90mm LMAF,JBA headers,Magnaflow Midmount,No cats with 3inch piping,Vogtland 1.6inch drop,Cobra R's and xenon body kit.

Its slow, Really.
1995 svo Tbird. R.I.P.
96 Pearl white bird. Awaiting transplants from the 95
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post #5 of 6 (permalink) Old 10-22-2006, 05:01 PM
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Define rough. Does it fell like it's missing under load? If so, one of the plug wires may not be completely seated. It's happened to me before.

Peter M

SOLD 1996 4.6l Thunderbird-(fast) PI intake, custom exhaust, Bullet-Resistant Tranny™, blah, blah, blah
2007 VW GTI-(faster) United Grey, 18" wheels, APR stage 1 chip, and... uh... that's it for now.
..this space for rent..
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post #6 of 6 (permalink) Old 10-22-2006, 05:17 PM
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recheck all the wires make sure ya put they are on the right plugs.


if you touched it, recheck it.

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NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

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