Ok i have a 97 integra with a gsr motor and all 4 injectors were locked open and filled up the motor w/ fuel. So i tested the injector plugs and are 4 were at full signal. i figured this was the driver, so i put a new ecu in and the car started(after i changed the oil and pumped all the fuel out of the cylinders and intake manifold. Ran for an hour or so, but when you try to rev it out it would die. I noticed that fuel pressure would fall off when i rev ed it up, so i thought it could be fuel pump related, i touched the fuel pump harness and the car died. And once again the injectors are locked, motor is full of fuel and from what i can tell another ecu is fried???

Anyone ever had this happen or have any ideas ?????

 

The ECU completes the path to ground for the injectors. In other words, the injectors have voltage at them at all times the ignition is on. If all 4 are locked open I would suspect a short to ground on all 4 wires going from the injectors to the ECU. Kind of unlikely. Are you sure all 4 are locked open?

 

All are definitely locked, i just let the ecu sit for about an hour and it started up again, strange with the tps pluged in the fuel pressure drops to 0 when you give it throttle(almost as if it is causing the injectors to go wide open) , but when i unplug the tps it revs out and there is no pressure loss.

 

Could the TPS and MAP connectors be switched?

 

try a new tps, i bet that the old one shorted out from fuel puddling in the manifold

 

Hrm, wow.

-PHiZ

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chiovnidca &raquo;</TD></TR><TR><TD CLASS="quote">Could the TPS and MAP connectors be switched?</TD></TR></TABLE>
the afc reads manifold presure fine, and the tps reads fine when it is plugged in????

 

I had a very similiar problem. Try finding someone with a Honda or Acura and swap injectors.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by n1div &raquo;</TD></TR><TR><TD CLASS="quote">I had a very similiar problem. Try finding someone with a Honda or Acura and swap injectors.</TD></TR></TABLE>
the injectors are not locked the signal is locked, unless the injectors are burning the driver out?