Inlet mani removal

Kenan

Active Member
Dec 14, 2018
194
73
Looks like a good job to me, getting mine done when she goes for mapping.

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jonny87

Active Member
Aug 2, 2019
53
6
UPDATE

So today I had all the parts necessary to rebuild my intake.

Couple of mentions, firstly: Andrew @ listers seat worcester. We had some issues identifying a certain part but both Andrew and Pete (also @ Worcester) persevered and came good in the end.

Great chaps who (trust me) do not have easy jobs finding parts for our cars. An example of which is I needed the RHS hose coming off the PCV module, identified it on their drawings and ordered. It was wrong. Turns out the drawings are all back to front so left is right and vice versa and lets not get into LHD/RHD!

Secondly a mention for a company called injectortune.... http://www.injectortune.co.uk

Based in Devizes, Wiltshire these guys cleaned and serviced all four of my injectors with return recorded postage for £60, this included new seals, teflon seals and baskets. I posted them off on a Wednesday morning and they were back with me Saturday morning.

Very impressed with the service and value for money.

To recap the issues I was having before the strip down... random misfiring on cylinders 1 & 3 at 2500rpm and above.
Not 100% of the time, sometimes would drive fine. Replaced all plugs and coil packs, coil packs replaced as after a while of driving and missing engine management light would flash at me and eventually stay on.

After the issue persisted I narrowed it down to either a clogged inlet (common issue) or bad fuel delivery (I had checked HPFP follower for excessive wear)

I thought removing and cleaning the inlet was the less expensive route to explore first, I was kind of right lol
After replacing the inlet plates, PCV hose and repairing a vac line that I broke :censored: Along with the injector refurb I spent £170. Seat quoted me £250 for new HPFP with follower.

The results? A definate improvement, I've drove it 20 miles today and although the first mile or two was a bit "rough" it soon smoothed out and feels very nice now.
I put the initial rough running down to cobwebs being blown out, car was sat for over a week with the inlet manifold off etc.

Anyone experiencing similar issues I urge to drop the manifold off and clean or if not confident on the tools look into walnut blasting. I was amazed/shocked at the build up in my ports.

Anyway, I am chuffed to have my car back on the road :) now hopefully its running closer to the 230/240bhp as stock I can look to go stage 1.

Thanks for reading :thumbup:
 
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jonny87

Active Member
Aug 2, 2019
53
6
:banghead2:banghead2:banghead2

Misfire is back with a vengance after just a few days, I spoke too soon and jinxed it!!

Interestingly I dont get an eml now.

New plugs, new coils in 1 & 3 as vcds indicated these missing, intake cleaned, injectors cleaned and serviced. What next?

Will replace pcv valve tomorrow, both hoses intact (crankcase hose brand new)

Any other suggestions people?
Diverter valve?
 

R3k1355

Active Member
Oct 30, 2014
1,778
247
Yorkshire
Diverter valve, PCV and boost leaks are the main suspects.

Have you scanned with VCDS after the problem has come back, just incase it now tells you the other coils you didn't replace are faulty.
 

jonny87

Active Member
Aug 2, 2019
53
6
Head gasket :(
Vcds picked up random misfire/misfire cylinder 1. Coolant level dropped on my way to garage but came back once we released the pressure. Probe confirmed high reading of hydrocarbons in the coolant.
Assume water is killing the spark causing misfire, gonna try steel seal first as I am skint with xmas coming up etc.

Happy wednesday :)
 

Kenan

Active Member
Dec 14, 2018
194
73
Oh bigger, sorry to hear it's the head gasket. On the plus side, least you know what it is now so you can get it sorted

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jonny87

Active Member
Aug 2, 2019
53
6
When I bought it I knew it was nearly due a cambelt change so if I think of it that way it softens the blow a bit lol

Onwards and upwards
 
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