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Comatose · 01-05-2002, 05:51 PM

86GT, HO 5.0EFI 5spd. Bone Stock except Hypertech Power Chip.

The idle is inconsistent, and cruising about 25mph, 2k RPM 2nd gear, the car has a mild surging motion. It seems to do this upon acceleration as well. If I accelerate hard from one stoplight, when I stop at the next the car idles at 1200 rpm for a short while, whereas it will usually idle between 500-800rpm.

The Cap, Rotor, Plugs, Plug Wires, Air Filter was all changed 6k miles ago.

Any help would be appreciated.

Thanks,

Jeremiah

01-05-2002, 05:51 PM	#1
Comatose Registered Member Join Date: Oct 2001 Location: Goldendale, WA, USA Posts: 84	Bad TPS? 86GT, HO 5.0EFI 5spd. Bone Stock except Hypertech Power Chip. The idle is inconsistent, and cruising about 25mph, 2k RPM 2nd gear, the car has a mild surging motion. It seems to do this upon acceleration as well. If I accelerate hard from one stoplight, when I stop at the next the car idles at 1200 rpm for a short while, whereas it will usually idle between 500-800rpm. The Cap, Rotor, Plugs, Plug Wires, Air Filter was all changed 6k miles ago. Any help would be appreciated. Thanks, Jeremiah __________________ Jeremiah 1986 Mustang GT K&N Filter, Removed Air Silencer, Black Magic Fan, 65mm Explorer TB, 110lph BBK Fuel Pump, F/M Force II Cat -Back, O/R h-pipe, U/D's Timing@14* 1986 Mustang LX SSP--new project car AOD, 3.27's, Dumps, 238k miles