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30th September 2022, 18:21 | #1 |
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strange hesitation !!! MG ZT 1.8T
just dropped my daughter off at a party and on the way home on a fast road I put my foot down, rev's got too 3600rpm then nothing for a second, just like you turned the ignition off. but after that second it carried on climbing up the rev range. I slowed down and tried it again and the same thing. on the 3rd attempt it pulled right through but ran out of road to try it a 4th time. I don't think its an electrical misfire but could be turbo ????? anyone had a similar thing
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30th September 2022, 18:53 | #2 |
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My 1.8t had the same issue. Changed the coil packs, checked the plug gaps. Been ok since.
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30th September 2022, 19:17 | #3 |
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Wot Bob said! If the coil packs are past their best you can get a hesitation under "enthusiastic" acceleration. The 1.8T responds best if the plug gap is set to 0.7mm.
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30th September 2022, 20:00 | #4 |
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cheers lads, the plugs are new as the P.O. give the car a service but i'll check em anyway. i was thinking about changing the coil packs just the other day as the idle wonders from 820 to 850 rpm !! I'll get some ordered
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1st October 2022, 16:59 | #5 |
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I agree with the good advice given above. I had similar, some time ago, so renewed the plugs with a reduced gap, cleaned the cam-position sensor and added a dose of Redex, the problem was solved. The plugs I used came out of the box with a 1mm gap; this may have been the main factor.
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1st October 2022, 18:45 | #6 | |
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