Thread: need help with gtp

soo i just got done driving with the o2 unscrewed and unplugged , no difference in accleration when trying to hit 32 mph. let me add some more info to this. this just started like 3 days ago, for some reason ever since this has occured, the indicator brake light stays on. the emergency brake is no where near being engaged . it works fine

the other day i was going over a very steep bridge, and the idicator light went off and the car acted normal.. then after i turned off and turned car back on . indicator light still on and car still did not accelerate when pressure applied after 32mph . then i was driving it and the light would cut in and out and car would still act according to it. then yesterday i was going up a hill to reach a parking garage then i looked down and noticed light went off and car acted normal and of course turn off turn on, light is still constant. i noticed when it first happen i could i feel and hear a small nudge on the break pedal.

really confused lol i changed coil packs, plugs & ​wires , 02 sensor

2004 grand prix gtp

gas gauge is fine and always lets me know when low etc. i doubt its a pump?

No, what he meant was that the pump may not be delivering the proper pressure to keep it running.

Have you checked the brake fluid level in the master cylinder? That would cause the brake light to come on as well.

Also, what brand and type of spark plug did you install? Hopefully a copper or irridium plug and NOT platinum.

what about fuel filter? and no i havent checked it in the master cylinder, i dont know how lol :/

i installed irridium