New (to me) cobra, loss of power.

[slowyellow]

I figured that it was a tuning issue, or a fuel pump. I also planned on getting it re-tuned with my (trusted) tuner, just so that I know exactly what it is tuned with and for. Thanks for the info, and I'm assuming that the tuner is the one who I'd like to data log the vehicle right? Thanks again everybody.

[majorownage]

Y u no check plugs?

[greenbullitt]

Y u no check plugs?

plugs dont start running right after a key cycle!

[slowyellow]

plugs dont start running right after a key cycle!

Thanks. What do you recommend? You are one of the resident ford mechanics right?

[majorownage]

plugs dont start running right after a key cycle!

lol derp...

Didn't read that. Skimming FTL

[46Tbird]

I am suspecting a bad pump or possibly alternator. Check voltage at idle.

[greenbullitt]

Thanks. What do you recommend? You are one of the resident ford mechanics right?

I wont say its a bad idea to LOOK at the plugs to get an idea of how the cars running but it may not help you much here. I would make sure there are no codes stored to be safe, and like slim said, get it on the rollers and check it out.

[slowyellow]

Ok, will do. What should voltage be at idle?

[Snatch Napkin]

A bad diode can screw with sensors, but not necessarily show up at idle. RF interference happens with a bad diode. Sensors hate RF interference.

However, check the voltage at your battery with the engine off then check it again with the engine running. Hopefully there is an increase in voltage. This will only tell you if it's charging, though.

EDIT: there will normally be a check engine light if a sensor is thinking it's having an issue. Normally.

Hopefully no one has removed the check engine light. Do a scan just for the sake of doing it.

[KungFuHamster]

maybe some belt slip?

[dblack1]

My fuel pressure rail sensor took a dump on me with only 20k miles on the car. It wouldn't start on the side of the road. A quick search online and I went and unplugged it and drove it home.

I'd check the pumps, and I'd also get a wideband in it.

[terminator03]

Thanks for all of the responses. And just to put it out there, there is no check engine light. Is there anyway to check to see if it is the FRPS? And what type of plugs are reccomended at that boost level, gap? Thanks again.

pull the vacuum line off of it and see if any gas comes out if it does your frps is blown

[slowyellow]

pull the vacuum line off of it and see if any gas comes out if it does your frps is blown

Ok, I'll do that.

Also I just took it out and actually went WOT with it. It had a hiccup, just a very quick, no power, and then right back in there. Also the fuel pressure shot up to somewhere above 50 psi, (not sure I had to hold on and steer the thing) but for the split second I had to look down it was a little above 50 psi. Normal??

[Fastlane]

Ok, I'll do that.

Also I just took it out and actually went WOT with it. It had a hiccup, just a very quick, no power, and then right back in there. Also the fuel pressure shot up to somewhere above 50 psi, (not sure I had to hold on and steer the thing) but for the split second I had to look down it was a little above 50 psi. Normal??

How many psi of boost? Fuel pressure should rise 1:1 with boost psi. So whatever amount of boost your are running, the fuel pressure should be 39 psi above the boost pressure.

[slowyellow]

Ok, gotcha. First boosted car if you hadn't noticed from my newb ass questions, lol. Boost was around 18-20 psi. Like I said, just a split second to look down. This damn car is crazy fast. By far the fastest I've driven, lol. I guess it'll just take some getting used to.