Allright let me start this out, I was driving to work, with my new addition of a mugen chipped ecu, a slow truck turns, so I let the vtec gods do their thing. Everything is great, a dumb mfer in a van pulls right out in front of me. flat spot the tires no biggie. I follow him untill it goes into the four lane, I tromp it and shift to 3rd. It pulls hard and falls over on it's face. Dies and leaves me stranded, won't fire. I get a ride to work, and go back to tow it home. Fires up this is about 2hrs later. runs like **** wont rev past 3000, back fires bad. Drive it to the shop. My TPS was on it's way out so I changed it with one I had sitting around. It was reading a code 7 TPS. So I figure should run now, nope. Since then, I have tried new plugs, checked for spark, checked the valvetran, took the plugs out and turned it over to make sure no rods were broke, they weren't, tried another ecu(stock '89 si) it has ran with this before with vtec disconected, still nothing. It smells like it has fuel. Plugs were real dark. I leaned out my fuel pressure regulator. Still nothing. Fuel pump has power. Every problem I've ever had I checked for. Still no dice, I was thinking maybe a clogged injector or two? I'm baffled nothing works I've got a head ach and I'm almost out of cigarettes. I was thinking of the possiblity of having 2 bad tps's. If this seems logical anyone know what part number for the tps, b16a sir, preferably Honda#, Acura dealer is 60min away. I'm at the end of the rope. Any Ideas are greatly appreciated!!! My pretty little hate machine is being hated alot right now.

 

Did you check your ignition rotor? The bearings in honda distributors DO fail and when they do they can lock up the assembly and get the rotor out of phase... this would result in back firing as you mentioned. Just an idea.

Dustin

 

It still sparks just fine

 

Yes, but is it sparking at the right time? That is the question. Check your timing w/ a timing light.

 

don't suppose you know where the timming mark is on the b16?

 

Should be a plastic mark on the timing belt cover and a white TDC mark along with a red 16 deg BTDC mark on the crank pulley. It should be firing somewhere around 16deg BTDC.

Dustin

 

same place it is on most cars bart, you know that. you don't have a timing light though.

 

rotor laying in cap after cap was removed. I'm gonna jump don't stop me!!!

 

it runs now thanks!!!!!!!!!!!!

 

Very cool, glad you got it running.

Dustin