Injector probs???

Hi peoples.
Recent td5 90 owner and have just developed a problem. Vehicle starts easy, if a little smoky, but clears quickly. Drives lovely for 5 mins, smooth and nippy , then feel like it’s running rough, vibrating like it’s running on 4 cylinders. Ease off and it runs better but more throttle and it spits and coughs again with little power. No oil in the loom or fuel in the oil. Any thoughts, thanks.

Try unplugging the MAF, if it's better without then the maf is duff....

craigoodwood said:

Try unplugging the MAF, if it's better without then the maf is duff....

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Thanks. Should have said tried that and replaced with a vdo? No change. Thanks though