hondaeg95

If anyone has ever had this code thrown before please help me out. I just did an auto to manual intake manifold and throttle body on my 97 civic an i am now throwing code 91. I have no clue what to do?

ej1 pilot

look at the FAQ thead at the top of this forum, you should find some help there

hondaeg95

There is No 91 cell code listed so I do not know where to start looking.

ej1 pilot

sp post your question in the thread

cruzan007

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaeg95 &raquo;</TD></TR><TR><TD CLASS="quote">If anyone has ever had this code thrown before please help me out. I just did an auto to manual intake manifold and throttle body on my 97 civic an i am now throwing code 91. I have no clue what to do?</TD></TR></TABLE>

Code 91 is related to the Fuel Tank Pressure Sensor. Im not sure how what u did can cause this but thats what the manual says.

I recently had that code on a 99EX shell i bought it turns out someone took out the fuel drain plug from the gas tank. Its a good thing i didnt try to completely full the tank before testing the car.

hondaeg95

the problem is the car use to be a automatic but we did an engine swap and now its a manual. the engine that i bought for the swap was an auto (didnt know this at the time) but i switched the intake manifold and the throtle body becasue it was throwing code 14; that was fixed but now i have code 91 haunting me. I took it to honda for a last opinion but they said they couldnt check the codes because i was using the wrong ecu and they said i wasnt using a O2 sensor. I dont know what the hell they are talking about. I just want to solve this problem so i can get the damn car inspected.