Not sure if this was the correct forum for this but...
I just bought a
85 TPI IROC-Z
A4 LB9
3:42 gears
Comp Cams 12-262-4
214/224 duration
502/510 lift with 1.6 rockers
LT Hedman Headers into Magnaflow 3in

the previous owner had put in the Comp Cams 12-262-4 (cam specs below)
The check engine keeps coming on for a minute or two and going off. I ran the codes and the only codes given is a 13 and 23 which are:

13 - The PCM has determined that a malfunction exists in the electrical circuit for camshaft "b" position actuator in bank 1.

23- The PCM has determined that a malfunction exists in the electrical circuit for camshaft "b" position actuator in bank 2.

(Bank 1 identifies the location of cylinder #1, while bank 2 identifies the cylinders on the opposite bank) per Auto zone.

what am I looking at here? any and all help/advice is greatly appreciated.

Car runs excellent, with the exception of some slight boggish in lower rmp, but i was told a stall converter would clear that up.

Camshaft Specification Table
Part Number 12-262-4
Engine 1955-1998 Chevrolet
262ci-400ci
8cyl.
Grind Number CS XE262H-14
Description
--------------------------------------------------------------------------------


Valve Adjustment -------------------Intake 0 Exhaust 0
Gross Valve Lift ---------------------Intake 0.464 Exhaust 0.47
Duration At 0.006 Tappet Lift --------Intake 262 Exhaust 270
--------------------------------------------------------------------------------

Valve Timing At 0.006

Intake -- Open 21 Close 61
Exhaust -- Open 73 Close 17
--------------------------------------------------------------------------------

These Specs Are For The Cam Installed At 110 Intake CL
Intake Exhaust
Duration At 0.05----- Intake 218 Exhaust224
Lobe Lift------------- Intake0.309 Exhaust0.313
Lobe Separation -------Intake114

 

Those are not the correct interpretation for those codes. They might be correct for some other kind of car, but not these.

Check here then proceed accordingly.

 

Thanks, that is alot better now, I know how to trouble shoot and fix these...
13- Oxygen sensor signal stays lean during warm engine cruise
23- Low temperature at manifold air temperature sensor OR Throttle position sensor error

I guess that scare of cam issues and having to put the orginal back in was my lesson on trusting Auto Zone. Whats worst is i have the Haynes book and it says the same thing as the link you send me.

THANKS!!!

 

That cam is a bit much, but shouldn't be impossible to get to run right. You might want to learn some PROM burning though. It's different enough from stock that no stock program is going to work right with it. But I sure wouldn't go ripping it out just yet.

 

Prom Burning???? whewwww. wow... mmmm ok

 

Right; the late 20th century version of carb jetting and distributor curving. Nothing that would be considered unexpected by anyone wanting their car to go faster than how it rolled off the showroom.

Your car now has its air flow system significantly altered (headers & cam). It needs a different amount of fuel to go with the different air. You accomplish that electronically these days.

Just "fixing" the "codes" is only the beginning (and may not be possible if the mods have moved the engine's behavior outside of the stock programming's ability to understand and cope). Next, you'll need to tune it to run right.

 

ok now where do i have the prom burning done, or how hard, senstive, or Much does doing this myself cost?

 

Top of this page, click on "Tech Boards"; scroll down to "DIY PROM".