88 chev astro 4.3 computer codes.

I have a 88 chev astro van with a 4.3. My service light came on and i got the codes 14,22,32,33. can any one tell me what thest codes are or where i can go to get them on the internet.

14 = coolant temperature sensor / high temp
22 = throttle position sensor/ voltage low
32 =BARO circuit low (barometric pressure sensor circuit low)
33= MAP sensor
These are the OBD 1 codes from my Haynes Manual.

32=BARO circuit? Hmmm never seen that one before. I thought 32 was always EGR on GM OBDI vehicles.

Yup, CD's right. 32 is the EGR. That's what I get for "sped redding". The 32 code "BARO circuit low" is for a carb'ed engine, doesn't necessarily apply to the Astro.

Well it could. Some of the first years of the astro were carbed....

But an engine with FI should see 32 as an EGR code.

I'd start with the first code and work my way down.... One may take care of another. But it sounds like you have a cascade of problems...

For that many codes coming up at once, with sensors in such close proximity, I would start by checking the wire harness for loose connections or damage.