1 bar map sensor...w/turbo?

[TD or Not TD]

i was wondering if i can use a 1 bar map sensor in my turbo car but use a diode to change the resistance in the sensor?

[big_P]

It would be pointless to do so.

[TD or Not TD]

well i converted my car to turbo and the 91 harness uses a different map sensor than the 90-older cars and right now i cant afford the new map sensor($45)

[oldgregg]

Boneyard MAP, $5, & yeah, pointless to use a 1 bar MAP.

[Una]

Get a junkyard map, if you can't find a late model turbo one, get the connector for an early one along with the early one. Wire colors are the same, splice it.. If you converted a TBI car to turbo, this should be a no brainer.

[TD or Not TD]

no 91's in a local yard, id prefer not to cut my harness and besides, i sold the original harness for the other car. one of my buddy's said he'd buy me it if i got his honda running for him.

[big_P]

Youd rather spend 2 hours rigging up a diode to your existing map sensor, than to cut and splice a connector that would take you 5 minutes?

[xrattiracer]

hmm, spliced wires or blown up engine...
hard choice man.

[TD or Not TD]

Quote:

Originally Posted by TD or Not TD one of my buddy's said he'd buy me it if i got his honda running for him.

nobody could have read this part.

i dont know how anyone could take 2 hours putting a diode in there map sensor?

xrattiracer-im sure that if it came to risking damaging my motor i wouldnt do it. you should know better than that. good usefull information

[Phreakish]

the 1 bar map wont read boost pressures... even if you put in a 'diode' to change its 'resistance'... There is a reason that turbo motors dont use 1 bar sensors, and theres a reason 1 bar sensors dont read boost... I'd be impressed if you could modify it to work, just get the RIGHT one and be done with it...

[jdawg]

I have been researching for a s10 turbo a while. Same kinda deal. The computer wont be able to read any boost. You may be good for a couple psi but not much or you will detonate. Putting in a diode wont do anything really. The reason it is done on 2bar maps is so the computer wont cut out at above 14.7 psi, but then you have to take matters into your own hands and get cold starts and pressure switches. Just get a used MAP for now if possible. With a 1bar your computer cant see any boost so it wont add any fuel past 0 on your gauge.

[TD or Not TD]

The colors dont match up for the older map sensor connector and the 91+. if it helps i can give the color of the wires on both connectors.