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Old 27th July 2022, 19:44   #1
FLYING BANANA
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Cool Hesitation under acceleration

Banana has started to hesitate under hard acceleration. OK if you slowly pull away, but we have a few steep hills around here and I cannot always get a run at them. It’s only just started. Not there all the time just occasionally.

Had a service three weeks ago with new plugs fitted.

Any ideas?
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Old 27th July 2022, 19:47   #2
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Originally Posted by FLYING BANANA View Post
Banana has started to hesitate under hard acceleration. OK if you slowly pull away, but we have a few steep hills around here and I cannot always get a run at them. It’s only just started. Not there all the time just occasionally.

Had a service three weeks ago with new plugs fitted.

Any ideas?
It has been known for the Coil Packs to play up
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Old 27th July 2022, 20:03   #3
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Does sound like coil packs Bob. For a while I had a 1.8 and 1.8T, the 1.8T had that problem so tried the coil packs from the 1.8, cured it.
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Old 28th July 2022, 09:25   #4
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Hi Bob

Coil packs are the normal things that cause this but but if you remove them you can pull off the rubber boot and clean the inside contact

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Old 28th July 2022, 09:49   #5
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Check the plug gaps Bob seeing as you have had new ones fitted.

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Old 28th July 2022, 13:33   #6
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I'd go with that Trikey geeza from what we know written on here 0.7mm gap appears optimum
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Old 28th July 2022, 20:57   #7
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Quote:
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Check the plug gaps Bob seeing as you have had new ones fitted.

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Certainly the 1.8 turbo's like a plug gap of 0.7mm As you have just had new fitted seems your first point of call ,then coil packs
Is the hesitation at low engine revs or or at higher engine revs ? when you accelerate hard as at higher revs the turbo's can cause over boost and the ECU cuts the engine to prevent damage . This can be down to the turbo control pipework
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Old 28th July 2022, 21:28   #8
FLYING BANANA
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Cool

I know the plug gaps need to be different after a re-map but we also have a ported head. Trying to get further information from the garage re the work carried out But many thanks.
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Old 29th July 2022, 07:38   #9
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Head work won't make a difference Bob, when I was running nitrous with ported heads, pkug gaps stayed the same, you are only introducing more fuel and air.

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Old 29th July 2022, 08:04   #10
FLYING BANANA
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Quote:
Originally Posted by TourerSteve View Post
Certainly the 1.8 turbo's like a plug gap of 0.7mm As you have just had new fitted seems your first point of call ,then coil packs
Is the hesitation at low engine revs or or at higher engine revs ? when you accelerate hard as at higher revs the turbo's can cause over boost and the ECU cuts the engine to prevent damage . This can be down to the turbo control pipework
The hesitation is at high revs.
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232750. Be patient Banana, we will soon be back together and enjoying the shows again.

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