I have a 95 suburban idles fast and runs very rich thrown code 32 and 35. I replaced the egr, egr controller, IAC. O2 sensor. Sounds like I got as huge cam in it. checked all vacuum lines, new pcv valve and plugs and wires.thanks for any help.
1995 suburban runs very rich code 32 and 35
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Spray some carb cleaner around the base of the TBI unit with it running and see if that changes the way it runs. I'll bet you've got a bad base gasket on there. Also check your vacuum line to the MAP sensor. A leak there, or a plugged line will cause all kinds of weird problems.
Good Luck and God Bless
Good Luck and God Bless
I'll try it thank you.
---------- Post added at 07:19 PM ---------- Previous post was at 06:38 PM ----------
thats exactly what it was, tbi base gasket leaking. thank you so much you saved me alot of messing around.One more quick question thats been bugging me since last winter. This sub has 299,000 miles on it but looks great still, I just drive it hunting and when i have to get to town in the winter.When I try to engage 4wd the light shows its engaged but sometimes when the front wheels need to work it sounds like you are trying to put a 4 speed in first at 90 mph. I replace the acuator but it didnt help. also when you sometimes disengage 4wd it makes a terrible clunk. seems like it will go in 4 low fine.
Thank you so much for your help.
---------- Post added at 07:19 PM ---------- Previous post was at 06:38 PM ----------
thats exactly what it was, tbi base gasket leaking. thank you so much you saved me alot of messing around.One more quick question thats been bugging me since last winter. This sub has 299,000 miles on it but looks great still, I just drive it hunting and when i have to get to town in the winter.When I try to engage 4wd the light shows its engaged but sometimes when the front wheels need to work it sounds like you are trying to put a 4 speed in first at 90 mph. I replace the acuator but it didnt help. also when you sometimes disengage 4wd it makes a terrible clunk. seems like it will go in 4 low fine.
Thank you so much for your help.
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