86 stock 16v falls on face

[hokus]

I took my 2 on a road trip today and my car revs fine all the way to 7g but when on highway she falls on her face over 4g new plugs cap etc. So no idea what's going on plug valley is clear no oil or water or anything just not sure where to start funds are a little tight so any suggestions where to start? Any advice would be great

[dh4ever]

So runs fine but has no power? How's your cat? If it clogged or collapsed inside it could cause it to loose power. It happened to me in my jeep. Couldn't get it up the hill from the port Mann. If it can be removed, or inspected give it a shot. I pulled mine right out and ran it, noticeable difference.

[hokus]

No cat 2 inch to glasspack and only other mod is cone filter that I'm aware of.. Been running fine as far as I know only road trip since I bought it in november gonna replace fuel filter torrid and hope for the best

[bbarnumboy]

test your sensors, like the TPS and AFM

[hokus]

If it was afm or tps wouldn't it so it all the time not just under load?? Sorry I'm more of an old school kinda guy

[bbarnumboy]

I had a Bad AFM once and it ran fine unless I was getting on it because it was not accurately monitoring the extra airflow I was forcing through it when i would hit the gas hard.

[bbarnumboy]

Could be a fuel delivery issue as well. Dirty old fuel filter?

[hokus]

Took her for a run today and looks like time for rebuild she starts pushing heavy oil through exhaust at 4500 so gonna need rings and head work oh well she will get me through till I can save up for master kit and head work or maybe sw20 or an 1z lol anyone know where to start looking for motors and not pay more than what car is worth lol

[dh4ever]

Do a compression test. Might be valve which is less serious. Mine were puking like a mofo out the exhaust side.