2.4 petrol runs terrible if rain damp

[blackbird]

OK, so the 2.4 Terrano runs well if its dry,
But if its dampor raining it runs terrible.

I've tried
plug leads
Dizzy cap
Rotor arm
Coil

But no difference,

Any ideas?

Could it be linked to the hot starting problems I already have ?

Thanks in advance




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[blackbird]

Pic

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[blackbird]

Rotor arm

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[blackbird]

Dizzy cap

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[solarman216]

Where is your coil pack located, up on the bulk head is a good place to put it, Rick

 

[blackbird]

Coil

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[solarman216]

I would move it as far as the wires will allow and see if it makes a difference, also examine it very carefully for any signs of tracking and moisture under the HT lead boot, it could be a sign that it is failing, sadly I do not have one, Rick

 

[blackbird]

I've fitted a new NGK coil.
It has made no difference

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[blackbird]

New coil

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[solarman216]

Do you have any fault codes, Rick

 

[blackbird]

No fault codes.

Its reading 5 5 - no faults

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[solarman216]

OK well damp causing problems hints at electrics, could be you have a damaged wire some place or a poor earth connection, I know it is a pain to search but it is the best advice I can offer at the mo, Rick

 

[blackbird]

Checked all the connectors near the air box.
Tried a second hand MAF
checked some vaccum pipes.

But still driving like a bag of bolts when wet damp raining

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[blackbird]

Maf

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[blackbird]

Air box

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[blackbird]

Eng

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[Banshee]

Air box

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There's a lot of DIY wiring in there mate :nenau

 

[blackbird]

Yep.everywhere.
Previous owner......

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[blackbird]

If I disconnected the maf it idles great.

Tried a spare maf , but its the same

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[solarman216]

Is your maf clean, it should be white on the two elements, if not use a cotton bud gently soaked in petrol or alcohol or similar, also try running with the air cleaner pipe disconnected when damp, Rick