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I have a 93 Nissan Primera gt with the sr20de engine.
It goes well when its cold, but when it warms up i loose loads of bottom end power.
I've disconnected the pipe between the EGR and the BPT valves, which has made no difference. so no EGR problems !
The TPS sensor voltage is spot on.
The MAF sensor earth is Fine.
The Throttle body has been cleaned
Plugs and leads , cap and rotor are Fine
I have replaced the fuel filter, and the idle is spot on.
Maybe i have an Lambda (o2) sensor problem ?
Anyone had any problems like this ?.
Regards Nod.
 
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