A/C help

[sx89]

Ok so I have a 89 hatch single cam that I converted from r12 to 134. I installed all the ac parts from another 240 flushed all the lines new drier and seals. Had it working great for about a day the. The exspansion valve messed up so I just put in another evap wit valve had it working good for about 3 days when the high pressure relief valve blew. Ordered new higher pressure 134 valve and the got system filled back up and now my ac comp turns when I de accelerate. Iv played wit the amount of freon adding a lil more taking some out, doesn't seem to affect it swapped of the high pressure switch and still no change. The ac seems to be affected by rpm when ever I push the clutch in after driving a few mins the comp shuts off and won't comp back on for at least a min. I don't know Wat to check but the pressures seem to be fine. Hope somebody can point me in the right direction.

[AsleepAltima]

have you checked the hi/lo pressure switch?

[sx89]

I swapped it with another one and still same thing ac shuts off when I de accelerate. Ac seems to work fine while moving but as spoons as the rpm drops the ac shuts off for a lil bit then comes back on. Have no idea where to go next except maybe throw anothe comp on it.

[sx89]

If anybody comes across this I figured out the problem it was the temp switch on the back of the comp shutting it off. Bypasse it and ac works great know.

[codyace]

Ah beat me to it. I was going to suggest that :D

Sometimes going from r12 to 134 you fight component issues like that...luckily they are semi-easily solved.

Remember SR owners, if you want AC on your SR20 swap,send me a PM and I can hook you up with a set of brackets to adapt it all for you :D

[pacotaco345]

Can someone post a pic of this switch and how you bypass it? I'm putting a/c back in my car this saturday and converting to 134.. I leave for Texas in 2 weeks so it needs to work haha.

[sx89]

/pacotaco345
Sent u a message


Anybody got any tips to get the ac colder? Still got the clutch fan and electric fan but it warms up at stops not getting enough flow thru condenser.