CEL codes

slimmyslim1420 · Post by **slimmyslim1420** » October 12th, 2006, 4:08 pm

I pulled codes on my ZE via an led light and it came up with 17, 24, and 69 problem is, is inm the list we don't even have a 69? So does anyone know what these codes are?

slimmyslim1420 · Post by **slimmyslim1420** » October 12th, 2006, 4:33 pm

I just tried to pull codes with my k8 ecu and the only one it gave me was 69, so i'm stumped.

max kl · Post by **max kl** » October 12th, 2006, 4:39 pm

alldata at my shop lists 69 as coolant temp sensor problem for fan.
i think thats the green connector buy the filler neck i think the black 1 is fro the ecm coolant temp sensor.
so are your cooant fans working? i think this is a on off sensor so if it is out of range or dissconected than its probbably the sensor. or its the wirring.

codes 17 n 24 both indicate o2 sensor voltage is not changing enuph during crusing speeds.
o2 voltage should osliate up to 8vdc down to 3 volts during crusing speeds . idle o2 voltage is irelivent .
and at about 50+% throttle o2 vdc should be above 7-8volts.

lack of inversion means your o2 sensor voltage is not changing for whatever reason. your probably running very rich or lean from a torn vaf boot

anything that will cause a big time lean or rich conditon

code 4 no ne1 signal i am fairly certain the engine will not run or stay running with out the ne1 signal. so if yor car is dying and not restaring untill cool you probably do need a distrubtor. but it may be as simple as a diry connector.

slimmyslim1420 · Post by **slimmyslim1420** » October 12th, 2006, 5:02 pm

max kl wrote:alldata at my shop lists 69 as coolant temp sensor problem for fan.
i think thats the green connector buy the filler neck i think the black 1 is fro the ecm coolant temp sensor.
so are your cooant fans working? i think this is a on off sensor so if it is out of range or dissconected than its probbably the sensor. or its the wirring.

codes 17 n 24 both indicate o2 sensor voltage is not changing enuph during crusing speeds.
o2 voltage should osliate up to 8vdc down to 3 volts during crusing speeds . idle o2 voltage is irelivent .
and at about 50+% throttle o2 vdc should be above 7-8volts.

lack of inversion means your o2 sensor voltage is not changing for whatever reason. your probably running very rich or lean from a torn vaf boot

anything that will cause a big time lean or rich conditon

code 4 no ne1 signal i am fairly certain the engine will not run or stay running with out the ne1 signal. so if yor car is dying and not restaring untill cool you probably do need a distrubtor. but it may be as simple as a diry connector.

I never said code 4. The weird part is, is that I only get 17 and 24 with the kl36 ecu installed it didn't give those with the k8 ecu. I am going to check for vaccum leaks shortly.But yea my fans work fine I knew that light would probably be on cause I think I have the wrong sensor but everything works so i'm really not that worried about that. How can I check my VAF to see if its the problem? I know the boots and stuff are fine they are all fairly new.

max kl · Post by **max kl** » October 12th, 2006, 5:41 pm

slimmyslim1420 wrote:
max kl wrote:
code 4 no ne1 signal i am fairly certain the engine will not run or stay running with out the ne1 signal. so if yor car is dying and not restaring untill cool you probably do need a distrubtor. but it may be as simple as a diry connector.

I never said code 4. The weird part is, is that I only get 17 and 24 with the kl36 ecu installed it didn't give those with the k8 ecu. I am going to check for vaccum leaks shortly.But yea my fans work fine I knew that light would probably be on cause I think I have the wrong sensor but everything works so i'm really not that worried about that. How can I check my VAF to see if its the problem? I know the boots and stuff are fine they are all fairly new.

sorry bout the 4 thing i copied that reply

thats not weird you have to understand the ecm dosnt test all problems immeadatly .
the test for code 69 is for resistance. so the ecm looks for resistance in the circut if there is none or very little it sets a code. [if sensor is unpluged the will be no resistance]
the tests for 17 n 24 take 2 trips to complete the ecm has to learn if your engine is running lean or rich.

slimmyslim1420 · Post by **slimmyslim1420** » October 13th, 2006, 9:19 am

When I put the k8 ecu back on i rode around for about 3 miles I figured that would be enough. But do you have any idea what might be causing it. I checked for vac leaks and there was none. As for running rich or lean I don't have an air/fuel gauge so is there any way I can check without one?