1988 GTI splutter problem mid range rpm

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zowark
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1988 GTI splutter problem mid range rpm

Post by zowark »

Hi, I have had a good look around and could find a post on my problem...
I have 1988 GTI 8v. She drove fine until recently.
She starts fine.
Now she's not the best in general and around 2500rpm she's worst 'weak' and splutters a bit. :cry:
Once over that she is better again.

To resolve the problem so far I have replaced:
Fuel filter, Distributer Cap and all leads, Spark plugs.

Any ideas? :roll:

I just got her NCTed today, that's MOT for you in the UK.
1988 BX GTI 8v Black (mine 16 years )
1999 Xantia HDI Black Exclusive Estate

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Way2go
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Post by Way2go »

Check that the 2nd butterfly is free to move easily on the throttle body. The linkage could be stiff at a certain point and also make sure it returns properly under the small spring presure. Checks can be made with engine off.
1991 BX19GTi Auto

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AndersDK
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Post by AndersDK »

An '88 GTI would have the infameous airflowsensor (AFS) - known to cause that kind of problems when it wears or gets dirty on the resistor track inside the unit.
If its never been replaced before my guess is, it is worn out completely - being an '88.

The AFS signals the ECU how much air is flowing into the engine, and the ECU corrects the injected fuel volume accordingly. If the AFS signal gets wrong - so does the fuel volume, and then the engine runs erratic.

The same AFS unit is used on other Citroen/Peugeot models with GTI multipoint engines from the same era. You should therefore have a good chance sourcing a new sensor.
C U / Anders - '90red16riBreak - '91GrisDolment16meteor - Project'88red19trsBreak
dead cars : '89white 16RS - '89antrasitTRDturboEst - '90white19triBreak

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Jaba
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Post by Jaba »

It could also be the vacuum advance diaphragm failed. Easily checked by sucking on pipe from the inlet manifold to the distributor.
The Joy of BX with just one Citroën BX to my name now. Will I sing Bye Bye to my GTI or will it be Till death us do part.

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zowark
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Location: Wexford Ireland

Post by zowark »

Thanks for the replies. I must get some time now and see what I can find with my new found knowledge... :lol:
1988 BX GTI 8v Black (mine 16 years )
1999 Xantia HDI Black Exclusive Estate

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zowark
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Joined: Sat Aug 11, 2007 10:12 am
Location: Wexford Ireland

Post by zowark »

Well this week I took her out a few times into town.
Now she seems fine again! :lol:
And I didn't do anything else to her.

Any how I'll keep note of all the suggestions, just in case she turns on me again :evil: , lol.
1988 BX GTI 8v Black (mine 16 years )
1999 Xantia HDI Black Exclusive Estate