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2003 MG ZR engine holds back at 3000 revs

Tiny
ALIBAM
  • MEMBER
  • 2003 MG ZR
  • 81,000 MILES
Hi. I have recently bought an 03 zr. It holds back at 3000 revs if given a lot of throttle but if given throttle slowly then will pick up speed. Timing has been checked, new coil pack, new camshaft sensor, new fuel filter and injectors checked. Where would I proceed from here please? Thanks. Alan
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Wednesday, September 18th, 2013 AT 1:24 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Any codes set? Sounds like a faulty TPI sensor, check codes first and report back the findings.
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Saturday, September 21st, 2013 AT 7:01 PM
Tiny
ALIBAM
  • MEMBER
  • 2 POSTS
Hi. Thanks for getting back to me. Could you explain exactly what the TPI sensor is please? Thanks. Alan
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Monday, September 23rd, 2013 AT 2:53 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
TPI, Throttle position Indicator, its part of the throttle body, it indicates the actual throttle position opening, run a scan and see if you get any codes.
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Monday, September 23rd, 2013 AT 5:18 AM

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