Author Topic: 16v starting  (Read 2745 times)

Offline mk2bal

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Re: 16v starting
« Reply #10 on: 14 July 2010, 17:11 »
nice 1 rj. much appreciated. new problem with the abf for ya! had the starting problem recently, not half as bad with the csi unplugged, but now im getting det in 4th and 5th under load with throttle. as soon as i let off it goes, and as soon as i squeeze it more it comes back.. been back to rr man, he knows about the wur trick, said it had the right pressure and flow when he tuned it, its just 3-4 weeks later (now) its started happening. he said 1st thing is to check the pressure etc, but at 50 an hour plus vat i dont want him to be diagnosing it, id rather have half an idea before i give it to him. aint got access to guages to check it, so he'll have to really, but any ideas of things i can check before hand? the car seems to perform exactly as it did when rr'd , still fast etc. i raced an ibiza cupra r the other day, n was flat out for ages neck n neck with it, quite chuffed cos it wasnt standard, but the problems have come along since... maybe i shouldnt of had it with him after all

Offline rubjonny

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Re: 16v starting
« Reply #11 on: 15 July 2010, 10:08 »
hmm you have been using proper 97 ron fuel right?  if so then id be inclined to agree that you need to start checking the fuel pressure. it could be a fault with the injectors though, especially if they are originals. you can test em easily enough, whip all 4 out and pop each one into a container, try to get 4 seethru ones the same size as it makes things easier to measure.  jump the fuel pump relay, then lift the metering flap all the way open, then allow it to close. all 4 should have a nice even cone of fuel, and the volumes should be the same on all 4. switch off the fuel pump then wipe the tips, watch em for a couple o minutes and non of em should leak.
Hello my name is John and I'm a dub addict.

Offline mk2bal

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Re: 16v starting
« Reply #12 on: 15 July 2010, 18:14 »
yeah its always on at least 97, think its on v power or tesco's finest at the mo.. i cleaned a few tiny specs of crud off the metering flap,and a bit of oil out of inlet pipe etc last nite, seems to be better today, havent heard on way to/from work. i do think itll be back tho as quick as it came/went! thing is the car seems to run so sweet, when i drop to idle slowing down i have to check it aint cut out, its that smooth and quiet! really stumped?!

Offline rubjonny

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Re: 16v starting
« Reply #13 on: 16 July 2010, 09:28 »
id be on the look out for any vac leaks, especially the small ones dotted around the engine. check in all the grooves in the inlet boots, they like to hid splits deep in the folds. when i was doing my conversion i had a box with 3 or 4 complete hoses in and only 1 was split free!  once all that checks out get your co looked at, they like to run at 2% :)
Hello my name is John and I'm a dub addict.