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-   -   swaping map sensors (https://www.homemadeturbo.com/hybrid-tech-8/swaping-map-sensors-17956/)

turbohf 03-27-2004 01:05 PM

Re:swaping map sensors
 
i have put 3 different motors in my car and have never touched the wiring (88 HF)...sounds like you might have some tuning/maintance issues. you chage the cap/rotor, plugs, etc?

turbohf 03-27-2004 01:05 PM

Re:swaping map sensors
 
btw you have your old distributor?

punx04 03-28-2004 12:10 PM

Re:swaping map sensors
 
put a new cap on it. i haven't ajusted the valves yet...but thas about it..but would that make it bog randomly? it would really help if someone could post a picture of their a6 in an hf. and i could check where the vacuum lines go. thanz
spencer

turbohf 03-28-2004 12:33 PM

Re:swaping map sensors
 
the only two you need hooked up are the Fuel pressure regulator (the thing on the end of the fuel rail) and the MAP sensor...---- the rest of it and cap it off, unless of course you live in Cali...

i will look for a pic of mine

punx04 03-28-2004 12:52 PM

Re:swaping map sensors
 
and the map sensor is the one by the throttle body? and how do u cap the other ones off? and i live in cali but my engine is older than my car soo i'm screwed anywayz...

Ravage70 03-28-2004 01:26 PM

Re:swaping map sensors
 
the one on the throttle body is the tps, map is near ur firewall

punx04 03-28-2004 01:42 PM

Re:swaping map sensors
 
okay soo i have 4 vacuum lines..and i need to plug two of them into the tps and the fpr.... right now i have the one vacuum line closest to the fender connected to the fpr. and the vacuum line in the middle connected to the tps. and the two vacuum lines closest to the firewall sitting there. is this right?

bobski 03-28-2004 02:06 PM

Re:swaping map sensors
 
the map sensor is in the box/bracket of junk on the firewall. if it has a cover, take it off and look around in there - if it's an HF, there should be two canister shaped devices (each with two wires), one boxier device with 3 wires and something my manual is calling a CVC valve - i've never looked at one, so don't ask me. :-\
the boxy 3 wire device is your map sensor (it should have a label on it - Sensor Assy. MAP) - run it's port to the smaller of the two vac ports on the top of your throttle body.
the cylindrical shaped devices are solonoid valves - one operates the evap. emissions canister, the other was for the EGR system which you no longer have (same goes for the CVC valve). you should be able to look at the vacuum diagram on your hood to figure out which is which.
the bottom port of the evap control solonoid goes to the vac port on the back of the intake manifold. the top port should be covered by a little cylinder shaped filter thing. the remaining side port of the solonoid goes to the top most port on the evap canister. the canister port directly under that should have a red mesh hose going to the large port on the throttle body. the remaining port on the evap canister should have a plain red hose going to a connection on the firewall (to the fuel tank).

punx04 03-28-2004 02:22 PM

Re:swaping map sensors
 
sooo now i thiiink i know which one goes to the tps but still deno which one goes on the fpr...and i dont have a diagram on my hood..

ps. that was the most confusing thing ever

punx04 03-28-2004 02:24 PM

Re:swaping map sensors
 
i see the sensor assy. i see the 2 vac's coming out of it but they both look the same size to me, cuz it says connect the smaller one to the throttle body.but they both look the same


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