2002 zd30 sluggish

Hello i am wondering if anyone has struck a problem like mine i have a 2002 dual cab and the motor is a rebuilt unit which i have done about 2000 klms since i fitted it and it was running fine but in the last 2 weeks when i am going up a slight incline it does not want to accelerate and keep the speed it slows down so i have to go down a gear but on a downhill it is fine it is not blowing any smoke at all i was wondering if it may be the throttle position sensor maybe or the neutral safety switch (which i have replaced previously), any ideas would be greatly appreciated. Ian

Hey mate. Normally the NPS will cause surging issues. Yours sounds like the map sensor, so the the ecu is not seeing the correct boost (whether the sensor is failing or the hoses are perished and it is not seeing the correct boost).

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Thanks for that i will check it out i have just replaced the hoses from the turbo to the throttle body with new clamps as well.