Help! S&S Headers, now no Start!
I couldnt drive the car on Thanksgiving and completely missed the Dyno runs that I paid for, so please excuse the delayed explaination.
It turns out the torque on the motor (unbolted) was slamming my exhaust system into the frame of the car. More specifically the lower O2 sensors were taking a beating until they got pinched and shorted out.
The O2 sensors are wired into the computer ECU Fuel Management System, so when they shorted they blew the fuse responsible for the Fuel Pump. No start condition.
The sensors wires were repaired and fuse replaced to solve the problem.
To prevent it from re-occurring, I had my rear O2 sensor bongs (pots, seats) reangled so that they were 30 Degrees from parallel and 10 degrees down in the pipe to completely clear the frame.
Warning: If you get an aftermarket system, make sure they DO NOT put the rear O2 sensors in at a 90 Degrees angle or you might experience the same problem I did.
On a seperate note, 16 hours into my drive the exhaust system sprung a leak. I found out that it blew the TOP O2 sensor from the driver side header. Maybe someone didnt install it completely or something, but I will reinstall it today and apply a Medium Threadlocking Compound. I highly recommend that others do the same.
Even with the missed Dyno runs, the cars screams on the interstate and stoplights. Definately worth the money to mod wih intake and exhaust system.
Thanks for the help guys.
It turns out the torque on the motor (unbolted) was slamming my exhaust system into the frame of the car. More specifically the lower O2 sensors were taking a beating until they got pinched and shorted out.
The O2 sensors are wired into the computer ECU Fuel Management System, so when they shorted they blew the fuse responsible for the Fuel Pump. No start condition.
The sensors wires were repaired and fuse replaced to solve the problem.
To prevent it from re-occurring, I had my rear O2 sensor bongs (pots, seats) reangled so that they were 30 Degrees from parallel and 10 degrees down in the pipe to completely clear the frame.
Warning: If you get an aftermarket system, make sure they DO NOT put the rear O2 sensors in at a 90 Degrees angle or you might experience the same problem I did.
On a seperate note, 16 hours into my drive the exhaust system sprung a leak. I found out that it blew the TOP O2 sensor from the driver side header. Maybe someone didnt install it completely or something, but I will reinstall it today and apply a Medium Threadlocking Compound. I highly recommend that others do the same.
Even with the missed Dyno runs, the cars screams on the interstate and stoplights. Definately worth the money to mod wih intake and exhaust system.
Thanks for the help guys.
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Matt300ZXT
SC - 1st Gen (1992-2000)
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Jul 1, 2011 08:02 PM




