Question about 1984 Volkswagen Rabbit

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1980 VW Rabbit semi-warm starting problem

We are original owners of 1980 VW, 1.6 CIS fuel injection.

Starts OK when cold. Starts OK when warm. When warm, then left "off" for more than 20-minutes or so -- very difficult to restart unless gas pedal held to floor. Then finally starts starts but runs very roughly for 10 secs or so, then finally runs normally. Fuel consumption also higher than normal but passed emissions test OK.

Replaced plugs, points, condensor, reset timing, idle -- no changes.
Replaced thermo switch & temp compensator but no change.

From reviewing diagrams, suspect fuel leak either at accumulator, check valve, lines, or injector regulator (would leak thru injector into manifold??). Don't smell any gas and car is garage kept.

Any ideas how to isolate the right part?

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  • mk_lmn Nov 23, 2008

    I have the 1980 vw 1.7 motor that is dumping excess gas into # 2 cyl. to the point it acts like a dead cyl. . head gasket is new, does it just need a new injector?

  • Anonymous Mar 31, 2014

    hard to start when cold

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While engine running and warm, try spraying carb cleaner onto back engine at where injectors go in. if idle go up, then replace inj. seats.

takes a $12 tool from Snap-on to pull inj.'s (which you can make very easily if you're of the mind from scrap angle iron) and a 12mm hex for the seats. be careful as they will be VERY brittle!

Posted on Dec 19, 2008

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Fuel filter changed

Posted on Nov 12, 2008

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