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darkoe_6
10-20-2006, 09:44 PM
okay i have a p28 ecu and its already been socketed. i slapped it onto my car with the the chip and it ran great. i took out the chip and turned it on and the car was idleing at 3500 rpm. whats the deal isnt this ecu suppose to be stock. btw, i'm running it on a 98 ex civic. d16y8. thoughts?
Falcon7
10-20-2006, 11:55 PM
You have to cut the J1 jumper to return the ECU back to stock.
SOHC_Rules
10-21-2006, 07:14 AM
so you turned on the car with the ecu plugged in, with no chip?
darkoe_6
10-22-2006, 04:13 AM
yeah. i turned it on without the chip. did i screw it up?
turboedpickup
10-22-2006, 05:03 AM
probably not - it's like running the car without an ecu - "program"
Got Vtec?
10-22-2006, 01:18 PM
Put the chip back in, it will run fine...
Chiovnidca
10-22-2006, 01:25 PM
yeah. i turned it on without the chip. did i screw it up?
Nope. Removeing the chip and not cutting the jumper had the ecu running in limp mode.
darkoe_6
10-22-2006, 04:58 PM
oh. so this means i have to desolder j1?
NEP-tuningalltheway
10-22-2006, 05:02 PM
this means you plug the chip back in why would you start the car w/out the chip in wtf
Chiovnidca
10-22-2006, 05:36 PM
oh. so this means i have to desolder j1?
If you want to return the ecu to stock operation.
Falcon7
10-22-2006, 08:05 PM
oh. so this means i have to desolder j1?

Most people usually just have a wire connecting J1. Just cut it with a pair of sidecuts.
CrazyConscious
10-22-2006, 09:00 PM
okay i have a p28 ecu and its already been socketed. i slapped it onto my car with the the chip and it ran great.

why would you even consider taking it out if it was running great?
SoHc94
10-23-2006, 12:35 AM
tahts wat i wanna know...
darkoe_6
10-23-2006, 12:54 AM
it does run great except for the fact that its reving slightly on idle.
xenocron
10-26-2006, 07:57 PM
who needs a good idle?

just burn a completely stock chip and put it in...