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Not Reving Clean To Redline


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12 replies to this topic

#1
gtiburge

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Std 1.9 gti non cat dizzy all good new Afm from Atp and runs and idles lovely but it just feels like a struggle to get to redline 4500 to redline just doesn't want to happen as quick as any of my other 205s I've had is it possible the fuel pump is failing any suggestions would be much appreciated the car is now mint and this is the last little niggle was going to put it on the rolling road just to see what the fueling does any help and Suggestions would be good

#2
Tom Fenton

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Advance the ignition timing a little at a time.

#3
gtiburge

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Done that no different unfortunately

Edited by gtiburge, 12 July 2017 - 08:31 PM.


#4
Gaz205

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Is this where an air fuel ratio set up could help?

#5
tartanbloke

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Check your exhaust is not blocked (especially if it has split in downpipe).



#6
estland

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Had the same thing with faulty fuel pressure regulator. Although with that also came hot start problems.



#7
gtiburge

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Fpr is fine the diaphragm seems fine never had hot start problems probably worth putting a gauge on to see the pressure though and the exhaust is brand new thanks for the suggestions though

#8
acox99

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Ignition module? Have you got heat paste on the mating face?

#9
gtiburge

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It's a new Bosch item and has the proper paste 😞

#10
tartanbloke

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the exhaust is brand new thanks for the suggestions though

Has this issue only appeared after the new exhaust has been fitted???? 



#11
gtiburge

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Unfortunately not it's been there since I owned the car

#12
acox99

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Correct AFM for the car? Sounds like it's going lean. Do a hard cut, coast to a stop and check plug colours.

#13
gtiburge

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Yh that's what I think out of fuel up top wondering weather the signal for the throttle switch is not working the throttle switch itself works fine , hopefully get it on a RR and see what that tells was thinking of blocking the fuel return or blocking the FPR just to give it as much fuel as possible just to see what that dose to the revs up top thanks for all the help and suggestions