Code Book Anyone??

[plowboy34]

I was just wondering if anyone had the book that tells you what the codes mean. Trying to help my brother on his 95 Chevy Tahoe but I don't have a code book. The codes are 32, 33, 35. If anyone has this info would be greatly appreciated.

[Grumpy]

call O'reilly's or Auto-zone Advance or NAPA or even or the Chevrolet dealer(parts or service Dept) .... they SHOULD be able to tell ya the codes
if not ... i do know Advance Auto carries a book that tells what the codes are for ALL vehicles in one book ... its like $29 or so tho ........ but good luck .... ill call a few places here to see what i can come up with


also ....... MOST are 4 digit codes not just 2 ... if you can get the 4 digit ones.. i got a web page here that tells what they mean ... but not for a 2 digit .. but im still looking

[Soul]

32 is egr
35 is IAC
33 MAP Sensor

Btw got these from google.

[Grumpy]

well there ya go .. lol.. i was goin to post this URL for ya but like i said.. its for the 4 digit codes ... but here it is ...


http://www.check-engine-light.com/trouble-codes


Soul ... where did you get that from ????

[plowboy34]

Thanks people, I googled and couldn't find it. I even did it after reading that and it still didn't get nuttin....never did claim to be puter smart though.

[Dave]

Google is my friend! Just type in chevy engine code 32 and this is what you get:
What do I do with the Codes? This is less simple. OBD-I codes are very vague, and diagnosis sometimes isn't that simple. Most people think that a code 32 (EGR system) means the EGR valve is bad and needs replaced. This isn't always so!!! There are many components in the EGR system that could cause the code to set OTHER than the EGR valve itself! Below is a list of codes and what they mean.



Code: Meaning:

12
No Distributor pulses

13
Oxygen sensor

14
Coolant Temp sensor circuit

15
Coolant Temp sensor circuit

21
Throttle Position Sensor

22
Throttle Position Sensor

23
Manifold Air temperature sensor

24
VSS (Vehicle Speed sensor)

25
Manifold Air temperature sensor

32
EGR system

33
MAP sensor or MAF sensor depending on engine

34
MAP sensor or MAF sensor depending on engine

35
Idle Air Control Valve

36
MAF Burn-off circuit

41
No Distributor pulses, cylinder select error

42
Electronic Spark Timing or Bypass fault

43
Electronic Spark Control fault

44
Lean exhaust

45
Rich exhaust

46
VATS system fault

51
PROM fault

52
CALPAK fault

53
System over-voltage

54
Fuel pump circuit

55
ECM fault

61
Oxygen sensor fault (degraded sensor)


Dave in snowy Wisconsin!

[Soul]

Just googled it and checked about 5 of the results to make sure they were in agreement. Google is fun, I steal stuff with it lol

[plowboy34]

I did some more searches and finally figured it out. Got it running pretty good for him. EGR still needs help but he didn't have cash to fix it all. Really appreciate everyones help