Volkswagen Golf IV (1998 - 2004) - 02 1.9 150 PD ARL injector issue???

Honest John Back Room » Technical matters
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Sat 13 Feb 2010 17:12
02 1.9 150 PD ARL injector issue??? - ch4chi
Hi,

have posted on here a few times regarding issues i am having with my golf 150PD, brief background- the car intermittently judders and throws out smoke @ 3000rpm and at other times it just flies!! I changed the MAF, checked boost pipes and changed 2 of them but to no avail.

Anyway recently whilst on the vagcom it came up with the foillowing fault:

16688- injector 4 intermittent misfire


the mechaic changed the injector with 2 other injectors, both of which made no difference, today he changed over my injector 3 with injector 4 (as we knew that 3 was fully functioning) as well as changing the injector wiring loom, yet it still comes up with the code????

please help???


thanks in advance.
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Sun 14 Feb 2010 14:32
02 1.9 150 PD ARL injector issue??? - ch4chi
anyone???
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Sun 14 Feb 2010 14:47
02 1.9 150 PD ARL injector issue??? - WorkshopTech
if its still saying injector 4 then i would think a wiring fault somewhere, or possibly an ECU fault (but unlikely). Check all wiring and connectors in the injector 4 circuit very carefully.
Do resistance check from the ecu connector out to the injector.
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Sun 14 Feb 2010 15:18
02 1.9 150 PD ARL injector issue??? - ch4chi
thats what i suggested as someone previously mentioned the ecu harness to me (wire from injectors to ecu), the mechanic agreed but said it was a lengthy job?

my question is would that cause the juddering and heavy smoking, it smokes even when idle??
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