codes pulled need help

[Rollin]

Ok,
I finally got every thing switched over from the 91 block to the 95 and she fired right up except when I pull the codes I get 41 77 74. Any help on these would be great. I did put in a new 02 sensor but these codes I am not sure were to start.
Thanks,
Mark

 

[Nhaz]

Start with checking the grounds(like as many as you can). And the wiring for the TPS make sure its not frayed and grounding out.

 

[SMTGREG]

code 77 is dynamic response. you probably did not push the throttle to wide open durring the key on engine running test, also you did not hit the brake pedal code 74 brake on/off not detected.
Code 41 is right bank lean. Look for vacuum leaks, restricted fuel rail to right side. If it is not running smooth check wiring to injectors.

 

[Rollin]

Ok I have gotten all the codes taken care of except 77, How or when do you hit the gas wide open for the test, I assume the motor has to be running but. Can somebody tell me how you do this test. Thanks

 

[SMTGREG]

What fixed your code 41?
When you are running the key on engine running test (KOER) the scan tool will ask for dynamic response or to perform brief wide open throttle, this usually occurs near the end of the test.

 

[Rollin]

What fixed your code 41?
When you are running the key on engine running test (KOER) the scan tool will ask for dynamic response or to perform brief wide open throttle, this usually occurs near the end of the test.

actually I didn't do anything, I think what was happening, I wasn't letting the motor get warm enough before taking the test. The last two days I drove the truck around a little while before pulling codes, once it was good and warmed up then everything passes except the tps. Which the idle gets real high sometimes so I will replace it since its so old. The thing I couldn't figure out was is there is only one 02 sensor so the ecc couldn't say if it was the right or left bank. The ecc is for a 91 motor so I just drove it around for awhile and made sure it was good and warm.