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?Miss fire only at high revs


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Hello

2000 V8-GT 

all seems to be fine down low and no CEL or codes ...... when I really floor it and get above 5000 revs I get what seems to be a miss fire - The engine kinda looses smooth acceleration  and a bit of loss of power. It’s only above 5000 rpm 

I wonder if it’s coil packs / plugs / leads so I will change these.......

Any other ideas ? 

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I'd imagine because the world is going backwards really fast!

Got the plenum off.   A lead was broken at the coil end !    changed the plugs / coils / all leads at the same time now I am scared above 5000

 

 

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88 Esprit NA, 89 Esprit Turbo SE, Evora, Evora S, Evora IPS, Evora S IPS, Evora S IPS SR, Evora 400, Elise S1, Elise S1 111s, Evora GT410 Sport

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Check if your CATs are still in good shape.

1996 Esprit V8, 1998 Esprit V8 GT, 1999 Esprit S350 #002 (Esprit GT1 replica project), 1996 Esprit V8 GT1 (chassis 114-001), 1992 Lotus Omega (927E), 1999 Esprit V8SE, 1999 Esprit S350 #032, 1995 Esprit S4s, 1999 Esprit V8 GT (ex-5th Gear project), 1999 Esprit V8SE ('02 rear)

1999 S350 #002 Esprit GT1 replica

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  • 2 weeks later...

Why scared above 5000 ? If you fixed the problem, everything should be fine...

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