Cel after ecu chipped
#1
Honda-Tech Member
Thread Starter
Join Date: Oct 2006
Posts: 1,376
Likes: 0
Received 0 Likes
on
0 Posts
Cel after ecu chipped
what could cause an ecu to work perfectly fine after its chipped (not in limp mode, engages v-tec) yet throw a CEL? my friends ECU is throwing code 9 from what he said but its not affecting his performance at all. he's tested other ecu's in his car and no cell. also considering its a p28 with j12 removed, and he has an ls-v, if we were to cut the jumper and plug it up, will it still throw a cell? (i want to find out if its and ecu problem and not the chipping).
#4
Honda-Tech Member
Re: Cel after ecu chipped
9*- Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98** 86-98 97-98 85-91 93-97 95-98 85-98
CYP Sensor (Cylinder)
Cutting the J1 humper would be a good test to see if the ecu itsself is damaged.
J12 is not gonna make any difference, the obd plug will be disabled tho (with j12 cut), so you will have to pull your codes off of the service connector.
85-98** 86-98 97-98 85-91 93-97 95-98 85-98
CYP Sensor (Cylinder)
Cutting the J1 humper would be a good test to see if the ecu itsself is damaged.
J12 is not gonna make any difference, the obd plug will be disabled tho (with j12 cut), so you will have to pull your codes off of the service connector.
#5
Honda-Tech Member
Thread Starter
Join Date: Oct 2006
Posts: 1,376
Likes: 0
Received 0 Likes
on
0 Posts
Re: Cel after ecu chipped
should it throw the saame cel if plugged up to and ls-v (jumper cut)? also, would you advise driving the car with the stock p28 program?
#6
Honda-Tech Member
Re: Cel after ecu chipped
You could limp your car around on the p28's rom, but dont rev it at all, kinda pointless to rev it untill your mapping is right.
what do you mean "...ls-v (jumper cut)" We are talking about j1 right?
Edit: code 9 has nothing to do with the chips ROM or how well the ecu was chipped either. hope that helps.
what do you mean "...ls-v (jumper cut)" We are talking about j1 right?
Edit: code 9 has nothing to do with the chips ROM or how well the ecu was chipped either. hope that helps.
Last edited by THC07; 03-09-2009 at 09:24 PM.
#7
Honda-Tech Member
Thread Starter
Join Date: Oct 2006
Posts: 1,376
Likes: 0
Received 0 Likes
on
0 Posts
Re: Cel after ecu chipped
You could limp your car around on the p28's rom, but dont rev it at all, kinda pointless to rev it untill your mapping is right.
what do you mean "...ls-v (jumper cut)" We are talking about j1 right?
Edit: code 9 has nothing to do with the chips ROM or how well the ecu was chipped either. hope that helps.
what do you mean "...ls-v (jumper cut)" We are talking about j1 right?
Edit: code 9 has nothing to do with the chips ROM or how well the ecu was chipped either. hope that helps.
Trending Topics
#8
Honda-Tech Member
Join Date: Aug 2005
Location: Glasgow, ky, usA
Posts: 1,056
Likes: 0
Received 0 Likes
on
0 Posts
Re: Cel after ecu chipped
Cut the J1, reset the ecu, and post up results. If you have a cel after cutting the J1 check it and make sure it's the same code, oh and post pics of the chip job. I would never rule that out first since it was the only thing modified regardless of what code it's throwing.
#9
Honda-Tech Member
Thread Starter
Join Date: Oct 2006
Posts: 1,376
Likes: 0
Received 0 Likes
on
0 Posts
Re: Cel after ecu chipped
Cut the J1, reset the ecu, and post up results. If you have a cel after cutting the J1 check it and make sure it's the same code, oh and post pics of the chip job. I would never rule that out first since it was the only thing modified regardless of what code it's throwing.
Thread
Thread Starter
Forum
Replies
Last Post
cheehee
Tech / Misc
2
09-06-2006 05:02 PM