I have a mk2 rev3 n/a convert to rev 2 turbo
On boosts it stutters and jumps
Its running a t28 turbo
It seems to be running rich as it smokes when driving
I thought it may need setting up on a rolling road but don't want to waste money
Could it be something else
boosting problem
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Re: boosting problem
any error codes? what ECU is in it? i assume you've checked all the ignition components? how much boost is it running?
Re: boosting problem
only get a 42 code because the speed sensor is not connected
ignition components have been checked
have not checked the boost level its set as standard
ignition components have been checked
have not checked the boost level its set as standard
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Re: boosting problem
Matt49a wrote:only get a 42 code because the speed sensor is not connected
ignition components have been checked
have not checked the boost level its set as standard
is it the stock ecu?
Re: boosting problem
Yes mate stock ecu
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Re: boosting problem
Matt49a wrote:Yes mate stock ecu
is the turbo making any boost before it splutters?? i'd be inclined to find out what your fuel pressure is. if it's not ignition then it's possibly fuel related. low fuel pressure could cause these symptoms, all in theory of course. but then so could a multitude of things
Re: boosting problem
no it seems to be when it should be boosting
I don't think the afm and throttle body are from the engine could they need setting up
would a aftermarket fuel regulator help setup
I don't think the afm and throttle body are from the engine could they need setting up
would a aftermarket fuel regulator help setup
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Re: boosting problem
Well if you're suffering from low fuel pressure it would most likely be the 20 year old fuel pump, the AFM shouldn't really be touched, i'd try and get the fuel pressure measured before anything, the cars are getting on now so it could be anything, seen a few problems with rev2 ecus lately on here i take it you're not hitting fuel cut? Although that's not best described as spluttering...
EDIT: I would actually check for boost leaks first. home made pressure tester is pretty easy to do.
EDIT: I would actually check for boost leaks first. home made pressure tester is pretty easy to do.
Re: boosting problem
Just been messing with it today and found the ecu is wrong
I don't have a rev2 the part number doesn't match
Would this cause these problems
Wrong map, sensors issues
I don't have a rev2 the part number doesn't match
Would this cause these problems
Wrong map, sensors issues
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Re: boosting problem
I'm really not sure about rev1/2 compatibilty mate, i'm sure somebody can tell you though 👍