my car every once in a while goes into safe mode then comes out by its self... vtec is radomly popping not popping everytime. this started when my battery died and when my mom helped me jump it i think maybe she arced on the battery and maybe fried my computer? the check engine light pops on after driving for a while and goes off when i shut the car off(is off when i start it then pops on agian). it also regects scanners so i cant get a code and i have checked my fuses so i dont think anything is blown. help please

- brian

 

I am having the exact CEL ECU problems as you... Someone please help us both out!!!

 

bump

 

Is this the stock computer?

 

yeah. my car has a 96spec type r swap with the stock jdm computer

 

it ran fine until my battery died and my mom helped me jump it to move it and she arced on the battery and im thinking maybe it fried my computer??

 

What car is this in (year)? Could you ever read codes?

 

yeah i have read codes before. its a 96 ls with a 96spec type r swap and hasport jumper harness

 

bump

 

how good is your electronic skills? if you have access to a voltmeter and wiring diagram, your first task should be checking for proper reference voltages at the ecm pinouts.

There is a good chance jumping the car (improperly) fried the ecm.

 

It is happening just because of the malfunctioning of the ECU.

 

i have a volt meter but have never tested a ecm.... is there a how to? lol there is a shop close to me that chips computers cheap plus a tune but my friend has a type r so i would just have his tune put on my computer so i my just try that

 

bump anyone eles have any ideas?

 

lunchtime bump...wasting money with buying a computer?

 

check and clean your grounds wires in the engine bay--a good place to start is to see if the negative battery terminal has continuity with the other grounds to the tranny case and the chassis near the radiator. check fuses under dash and under hood.

i found a junkyard computer for $70 online. PM me for the site.

 

Does the CEL illuminate when you start the car (bulb check)?
How did you run the wires for the VTEC solenoid?

 

check engine light is off when i start the car after driving a bit it will pop on. shut the car off then turn it back on and its gone until i drive for a while again. and vtec doesnt pop often and when it does it hits at a random rpm like 7100 or somthing retarded

the vtec and everything worked fine until the battery took a ****. and when my mom helped me jump it i herd a arc and didnt think much of it but now the car wont cross over and acts wierd. and it rejects the scanners for the check engine light.

its a 96 ls integra

has a 96 spec type r swap

has a hasport jumper harness for the vtec

and a jdm type r computer

 

did you check your grounds for continuity using a multimeter? my car would blow a fuse and throw CEL when the auto tranny tried to shift up while in D4. it was a bad ground to the battery.

 

i'll go check my grounds in a bit. i dont keep tools at home so i'll swing by work in a few

 

might be your harness
them harnesses have alot of probs
also...sounds stupid but if its falling out of vtec..simply check your oil

 

oil was the first thing i checked.

 

hm id lean more towards your harness then

 

what could go bad with the harness? burnt wire or something?

 

checked the ground on the core support and the ground on the tranny. checked the fuses and all of them are good.

 

bump