He drives a Focus SVT... any opinions?

Ok.. stick with me here. I'm driving to work this morning, and I'm about to hit the on ramp, and decide to pass one more car in 2nd. I'm at about 5k, and WHAM- feels like I hit the rev limiter. I looked down, and I hadn't crossed 5.5k. Thought to myself how weird that was, so, I shifted in to 3rd and took it easy on to the freeway to see what's really going on. Cruising at 70-75 on the freeway in 6th at ~3000, and same thing - can't accelerate, CEL, fuel light, and battery light come on, all gauges go dead except speed for one second, then everything comes back on like normal. If I maintain an engine speed about about ~2800 or higher, this continues to happen at 20-60 second intervals. It does NOT happen if continue changing gears, or pushing the clutch in, drop the revs, bring them back up, then let out the clutch. Just happened today, and I received my car back from the dealer Wednesday, so this didn't happen at all yesterday.
They did flash the ECU to the YRF0.

First thing I did when I got to work 15 minutes later is check the fuel cap, which being loose shouldn't cause the engine to attempt to shutoff, but was secure (I never tried before, but the weird thing is I can take the cap off without pushing down before turning now). As of Wednesday, there were no exhaust leaks, and the o2 sensors are secure. The ONLY thing that has changed since I received the car from the dealer was the breather filter I put on the hose, and my CAI. I DID notice, however, that I missed one of the two screws on the MAF that secures it to the intake pipe.
Could any of these things actually be causing my problem, or is it something totally different? (or has no one ever heard of such a problem?)

 

something in the fuel delivery system. Maybe a bad pump or clogged filter. Did it hit a revlimiter or just lose all power?

 

I guess he lost all power but it comes back on.. I'm guessing it has something to do with the ECU upgrade he recieved from the dealer.. any other thoughts?

 

was it up to operating temp? My car doesnt rev past 7k if it is not warm.

Edit: You prolly notice that with your GSR

 

Yea, i know vtec won't engage when engine is cold... but he claims he's been driving for 15 mins.. but I still think your on the right track, he states that since the ECU flash, the secondaries open at 5000rpm instead of 6. But he's says the engine was warmed up.

 

did it work before he took it to the dealer?..check all elctrical connections and grounds..if hes getting fuel then go to spark...yes fix those things you were talkin about yes you need to have all the screws in place..check the timing..get a good tune-up...good luck

 

Its the darndest thing.. I took a ride with him, what it does is when he's crusing at a reletive speed, say 2k or 3k, the rpms's drop all of a sudden, to zero like turned off his engine or he disengaged the clutch, and the Cel, fuel light come on.. and then goes back to normal. the needle drop instantaniously not slowly. sometimes, after the rpms drop, it would rev back it self to 2000 rpm. It did this around 2000 and 3000 rpm. Once it even did it at idle when sitting at a light, then it would rev it self to 2000 rpm and goes lower as if he just started the engine. Seems to me that the ECU is reset it self or something, cutting off fuel and stop causing the rpms to drop.

 

sounds like a faulty ecu. and CEL's pop up ?