Hi, my sisters 95 Teg LS - B18B DOHC non VTEC engine - has a dead #1 cylinder. Trying to figure out whats wrong with it, but i can't.

Its running VERY rich, not throwing a code, new ignition stuff - plugs, wires, dist cap, ect... all OEM spec. None of that fixed it.

Took the injectors out, cleaned those and swapped them around to see if it was a bad injector, but still no go. Dad pulled the spark plug and ran the engine; good spark from that cylinder. With the engine running, if you pull the spark plug wire off, there isn't any change in the rpm. The fuel injectors all have the right resistance and voltage is getting to the injectors. So, no power from that cylinder, despite the fuel injector swap.

pulled the valve cover off, the head is still in immaculate condition (was taken care of by my father, a car care maintanance guru) the engine has around... 65,000. oil changed every 3000 miles on the dot, new oil two weeks etc...

 

no compression. bent valve or bad piston rings.

 

re-check the fuel injector on the #1 cylinder, it could be stuck open..
you can confirm this with by removing the fuel injector and see if you can blow through the injector.. injectors stayed closed until a pulse of voltage is received to open it up..

oops...didnt read you correctly...wouldnt be an injector if a swap was done.. you could possibly have a burnt valve as well...


[Modified by BreakStuff, 5:29 PM 12/23/2001]