it is on the chip i had it double checked. set to 5k but when i go to hit the gas it just revs way past it. car is a 93 honda civic si, and launch control has never worked, im running out of options i have unplugged the VSS and i have also unlooped the neutral safety switch. has anyone else run into this problem?

and when i say it has never worked i had a p28 that was chipped with a b16a it didnt work. now i have a completely different chipped ecu with a fully built lsvtec turbo setup, i would like to get this to work for the track and not sure whats going on.

 

Try de-pinning your a/c switch.

 

i will do that. any idea which pin or what color wire and on what plug it is?

 

bump... any other ideas or a wire diagram

 

why do you have the vss unplugged?

 

I am assuming he unplugged the vss to make sure the ecu is getting a speed signal of 0 mph for testing purposes.

Wiring diagrams are on http://www.phearable.net/tech

 

thank you! and i will just de-pin the 2 a/c wires from the ecu harness and see what happens, correct?

and yes the VSS was unplugged for testing purposes

 

Depin b5

 

you mean b5? d5 is empty

 

thanks for all the help btw!

 

ok so i learned that looking at the plugs its backwards but d5 is still empty so i took b5 out and still no launch controll... fml.
im stumped.

 

ok so we have ruled out the vss, because i have had 2 in this car and with 2 different motors, and i have de-pinned b5 which is the a/c switch so thats not it...

any other ideas?

 

Try the ecu in another car, if it doesn't work then the issue maybe with your binary/tune.

 

k that might be hard, all my friends have d series and mine is fully built lsvtec t with rc 750's lol.

but its wierd that 2 different ecus would have the same issue

 

ok so it works in someone elses car this is starting to get irritating

 

sorry to resurrect this but i still have not fixed this issue!!! anyone else have any ideas.

 

Have you tried going WOT? Sometimes people set the TPS% too high and if you're babying the gas pedal, it won't engage.

If you've tried everything else and haven't gone WOT, I bet that's why.

 

What base ROM are you using, Gold, P30 or P72?

 

im pretty sure speedfactory who tuned it uses chrome pro. im pretty sure i have gone WOT i mean pedal to the floor and it just revs to 10k. there is no way of knowing what they set the tps at without reading the chip right?

 

Wonder what else it could be. Do you have copy of your rom?

 

So you put the ecu in someone else's car and it worked? Doesn't sound like its a problem with the ecu

 

i dont have a copy i might be able to get it though

 

I didn't see that part^

If it works in someone elses car, I am thinking with the above, definitely something to do with the car.

What is affected with launch control, Crome should use a fuel cut system instead of ignition cut (or else you'd have nice flames out the rear LOL). Could have to do with wiring I am thinking.

I would try a friends ECU with my chip in it as well, to 100% single out it being your car.

Look at your pins on the connector to the ECU, make sure none are bent, grounding out on another, missing, loose (sometimes common with jumpers), etc.

 

Hi guys...i'm from Malaysia...really new here...just wanna share with u guys that im using chrome also for my Honda civic EJ 4 doors sedan...my engine is b18cr and using P08 re-chip ecu...my chrome works fine but if the air cond. is on, it wont work...they made it like that for a safety reason..just my 2 cents. cheers guys...

 

pretty sure it is my car because i had this problem before with a different motor and ecu setup. now i am fully tuned on chrome pro and it still wont work, i have depinned the ac and it still wont work unless i did it wrong which i really dont think i did, im so frustrated with this as race season is here again and would love to be able to use it. not that the old fashion method isnt good i would like to have launch control lol