North American Turbocoupe Organization



persistant problem
4cammer72 Offline
Posting Freak
#1
after it warms up it starts skiping real bad . i replaced the tfi setup and even used another good dizzy but they both had the same symptoms. no water in the oil or oil in the water it runs smooth after bout 3200 rpm. gettin it there is a pain to watch. any other ideas guys?
88tc (sold) but keeping an eye out.
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Ryan H Offline
Posting Freak
#2
Back to the basics.

Check the IC hoses for cracks!! Your car will run like CRAP if they are cracked!

Motorcraft wires, Autolite 764 copper plugs gapped @ 0.32", good cap & rotor, check base timing and check ignition timing. Is the SPOUT connected? Good connections on the plugs and wires? Make sure the wires are seated properly! It's a stupid but simple mistake.. I've done it before, more than once. Reset your base idle & TPS, and check the TPS for flat spots if you have an analog multimeter.

I would check & DOUBLE CHECK all of the above.

If the above checks out, I'd look at the TFI/PIP.. since the problem arises after warmup.

Also, what is your vacuum at warm idle??

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Ryan Harris

88 TC, 5 spd, B&M Ripper Shifter, SPEC Stage 3, Walbro 190 LPH, Kirban, K&N, 3.73 rear, KS disconnected, BCS bypassed, 89K miles

[This message has been edited by Ryan H (edited 09-26-2005).]
'88 TC Smile Walbro 255HP, Stinger FMIC, PIT BOV, Pro 5.0, Kirban, RR cam, FRPP strut tower brace, T3
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4cammer72 Offline
Posting Freak
#3
ive changed the dizzy out and put another new tfi in and all three do the same. im leaning towards the coil now. i'll change that out tonight and see what happens. once it warms up it spits and sputters untill you get it over 3000 rpm.
88tc (sold) but keeping an eye out.
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Jeff K Offline
Administrator
#4
Plug wires / dist cap? Even if wires are pretty new, try a new set and see if the problem goes away. These cars are VERY picky about plug wires.

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Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 23 psi, forced air intercooler, water injection, bypass valve, Ranger roller cam, subframes, etc., etc.. // 86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP nitrous, ignition, gears, suspension, etc., etc.... // 91 Escort: Bone stock winter car // 04 Taurus Duratec (wifes car) // 91 Topaz (daughters first car)
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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sicsiksix Offline
Member
#5
I noticed that when my alternator went for the second time, it would miss really badly above like 4 or 5 psi. Just something to watch out for, always good to know if your alt. is putting out what it is supposed to.
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4cammer72 Offline
Posting Freak
#6
problem solved. the coil was bad. kinda sucks that i changed the dizzy out twice but at least i got a new tfi and two spares now. what a pain. thanks for all the responses.
88tc (sold) but keeping an eye out.
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