P1105 Map Sensor Pipe Fault

R-III-R Turbo said:

By metal pipe, do you mean the injector rail?

One of the vac nipples on each throttle should have a 4mm ID vac tube about 250mm iirc long each going to a 3into1 merger piece

Then from that merger there is a single pipe to the MAP sensor (where red arrow points)

Length and diameter of tube must be as above ime.

Other vac nipple on each throttle must be capped (rear throttle has 2 other nipples)

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vicvet said:

Just trying to clarify, the three hoses to each of the throttle bodies are 4mm ID and 250 mm in length. What is the length and ID of the tube going to the Map sensor?

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R-III-R Turbo said:

About 175mm long. 2.5mm wall thickness. One end is flared; 5.5mm internal diameter one end, 3.5mm the other.

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