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Discussion Starter #1
Hello,

I got a Del SOL W/ ZC engine and P29 ECU. I've triyed to get an OBD but my CEL remain ON in these cases :

CASE 1.

with key at position OFF
I plug a wire jumper on the 2 pin plug, I don't put jumper on the 3 pin plug
I turn the key into position ON II
CEL STAY ON

CASE 2.

with key at position ON II
same jumper on same plug
CEL STAY ON

CASE 3.

with car runing
same jumper on same plug
CEL STAY ON

How can I get a good diagnostic with good error code ? Or is my ECU DEAD ? THanks for your help.
 

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95 hatch
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1,104 Posts
Get a paper clip or something bigger than a wire to shove in there to make sure its making a good contact. It will stay solid if you don't have a good contact.

Check the ecu fuse under your hood and make sure its there and not blown.
 

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Discussion Starter #3
hello, the 15 amp ECU fuse is new, I've triyed with something bigger than a wire but no results... any help ??
 

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91 Civic
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1,183 Posts
there are multipule ecu FUSES. id abt the obd1 but EFs have a main fuse and a backup memory fuse(hazard). if the hazard fuse fuse blows the cel will always be on.
 

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90 crx si/96 accord
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788 Posts
sounds like your issue is not making a good connection. I personally despise the paper clip and would opt for a wire...or..put a little more effort and clip the connector off and install a toggle switch.
 

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Discussion Starter #6
I've checked all of my fuse, under the hood, under the dashboard, and they are good. I don't want to unclip the connectors. Is there another way I can make a good connection ? Thank you
 

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95 hatch
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sounds like your issue is not making a good connection. I personally despise the paper clip and would opt for a wire...or..put a little more effort and clip the connector off and install a toggle switch.
It sounds like you and paper clips don't get along very well, did one kill your younger brother? That's the only thing i can think of for why you'd "despise" a paper clip for a simple code check.

Not everyone has check engine lights on every week, there's no need to hack up the harness and install a toggle switch. Cd player/lighter fuse blows? Well wire up a toggle switch to the battery and call it good. Brake lights don't turn on when you press on them? Well wire up a toggle switch. :uh:

Back to the topic.
If your fuses are good, and you're sure the contact is good with your wire "or paper clip", ask a buddy to use their ecu to verify yours is in good working order. Or take yours to a friends car and see if it does the same thing as it does in your car.
 

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Discussion Starter #9
IF i chip my ECU with an ebay chip ( modified for speed limiter and rev limiter ) Will it vêt my ecu in à good working order ?
 

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90 crx si/96 accord
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788 Posts
Not everyone has check engine lights on every week, there's no need to hack up the harness and install a toggle switch. Cd player/lighter fuse blows? Well wire up a toggle switch to the battery and call it good. Brake lights don't turn on when you press on them? Well wire up a toggle switch. :uh:
dear god...thats gotta be some of the most assinine shit ive ever heard......
every one knows your sposed to sheet rock screw a door bell button to the brake pedal...:uh:

+1 on borrowing a buddys ecu tho
 

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IF i chip my ECU with an ebay chip ( modified for speed limiter and rev limiter ) Will it vêt my ecu in à good working order ?
I'd try to stay away from the generic "mugen" "skunk2" "jdm" chips off ebay. If you do want a basemap with certain things changed like the rev limiter, get ahold of Xenocron Tuning: Fuel Management and DIY Tuning Resource Center for Honda and Acura Performance - Hondata, eCtune, Neptune, Crome, TurboEdit, Uberdata. He's been a member of this site for awhile now and i've never had a problem with chipping kit/basemap/wideband kit i've bought from him in the past.
 

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Discussion Starter #12
Hello, how can I test the good working condition off my ECU without changing it ? Thank you
 

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CRX ECODiesel Ram
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i thought that if there were no codes the check engine light would come on solid, just as described in the first post....
 

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Discussion Starter #16
yes the cel remain on when the car is runing. When I change the gears my car rumble a lot, the clutch is new oil filter, engine mount, front suspension bushing too. what i'm about to check is injectors, fuel pump or head gasket, valve cover leak. for the injector and fuel pump I want to check them by OBD. but there are my issues... so thank you all
 

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90 crx si/96 accord
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788 Posts
wire up the toggle switch already .....there's a difference between hacking up a harness and doing a quality install with solder and heat shrink tubing.
 
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