need help please

[BrokenTalon27]

its a ls with b16 a motor..dont know bout the ecu check when i get home

What condition was the car in when you bought it? Did it run? was Vtec engaging? I have my doubts...

 

[ryukkid]

it was sitting due to no tags but does run n vtec does engage

 

[BrokenTalon27]

it was sitting due to no tags but does run n vtec does engage

How is Vtec engaging if the wiring doesn't reach the switch?

 

[ryukkid]

How is Vtec engaging if the wiring doesn't reach the switch?

good question... Do u have a pic of the connection that goes in the vtec would help

 

[BrokenTalon27]

Do you have a Vtec ECU and a jumper harness? Vtec wiring isn't there on an LS, and unless the previous owner wired it up or you have a jumper, you probably don't have it wired up.

 

[ryukkid]

What kind of ecu would go with b16a..it has a lose connection but don't know if that's it ill put a pic tomorrow morning

 

[BrokenTalon27]

What kind of ecu would go with b16a..it has a lose connection but don't know if that's it ill put a pic tomorrow morning

A P30 is a B16 ECU. You can also run a p28, P72, or other OBD1 ECU( that's converted to manual and Vtec) that is socketed and has a writable chip on it with a B16 MAP.

 

[ryukkid]

This is from the ecu barcode

And this is the connection that I think might be for the btec

 

[ryukkid]

Vtec * sorry for the up side down pic

 

[hidenplanvew]

Dont run that past 5k you might screw the head up w/o vtec kicking ... Something about it spinning the small lobes to fast and float or something...

 

[BrokenTalon27]

I don't know how you have Vtec engaging with a PR4 LS ECU and no wire reaching the Vtec switch. I really think it isn't.
You need to get a jumper harness, a proper ECU, and a Honda 4 wire O2 sensor. Then run the wires to the Vtec switch, Vtec solenoid, and the O2 sensor. Then you'll have Vtec working.

 

[ryukkid]

Idk how but theres vtec engaging @ 5.2 unless I put it lower from the vtec controller but I dont mess with it

 

[hgocasca]

Pr3 ecu should work too, I was told that even though the vtec might not be wired up, the sheer pressure of the oil can cause vtec to crack, not fully, but, cause it to crack none the less, this actually happened on my other teg, I dropped in a b16a and ran the pr4 for a couple days til I could wire up vtec on my pr3 I had, so it's possible, won't be nearly as strong, but it'll crack

 

[ryukkid]

Pr3 ecu should work too, I was told that even though the vtec might not be wired up, the sheer pressure of the oil can cause vtec to crack, not fully, but, cause it to crack none the less, this actually happened on my other teg, I dropped in a b16a and ran the pr4 for a couple days til I could wire up vtec on my pr3 I had, so it's possible, won't be nearly as strong, but it'll crack

maybe thats it but im goin to take it to a shop and their going to put the pr3,o2 sensor n knock sensor a wire it right probably atell them to take out the spoon vtec controller all for 350 since thats the only shop around here to deal with hondas :smackself: so much for the tokico struts

 

[BrokenTalon27]

Where are you located?
That $350 better include parts and labor.