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Originally posted by arron:
My car bangs out at 5500 or 6000 when I am racing it just starts cuttin out you can fell it and kinda hear it. Most people say spark plugs wires or bad o2 sensor.

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Might want to check your MAF. Does smokke come out the tail pipes when you top out?
 

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Posted by street_illegal_stang (Member # 1554) on :
 
jesus christ 5500rpm-6000 grand..
your nuts man theres really no power after 5250rpm on a nearly stock 5.0
i think the factory rev limiter is 6250rpm
there for fords insurance for there warrenty.
 

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Posted by arron (Member # 1941) on :
 
Stock 5.0? huh Im talkin about my 98 cobra
 

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Posted by street_illegal_stang (Member # 1554) on :
 
oh..in that case i wouldnt know..
 

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Posted by st5150 (Member # 51) on :
 
Check the basics, plugs, wires, fuel filter, ect. At WOT the EEC isn't reading the O2 sensors. Its pretty much only reading the MAF and RPM's. Checking the computer for codes wouldn't hurt either.
 

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Posted by arron (Member # 1941) on :
 
The old mass air meter had a hold on the bottom side for like 3mons until I noticed it but this problem didnt start happing untill my check engine light came which was because bad 02 senors. The place that fixed it is kinda (redneckish) and the one they replaced is big and chrome completly differnt lookin from the other 3 (and i just installed a wms 87mm pro- m with cold air tube thing. no check engine light. The car has 55,000 on stock plugs, and wires any suggetions
 

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Posted by arron (Member # 1941) on :
 
when i put check engine light after the wms install the mass air wasnt the problem it was 02 senors they were all scraped up and stuff and when it would rain it would get in the wire . It kinda makes a popin sound but you can feel it more than anything after 5500 no power it realy doesnt even wanna rev any more
 

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Posted by T-TopTerror (Member # 480) on :
 
Me and two buddies had the same problem. Change your spark plugs and re-enjoy your power. I'm using 99 cent autolite's and the car runs hard.
 

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Posted by arron (Member # 1941) on :
 
ok im going to get them right know but... what number are they and where do u gap them at ect....
 

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Posted by T-TopTerror (Member # 480) on :
 
I can't tell ya what number they are but gap em' at 55. That's the stock gap. We have a good ignition system.
 

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