John Speake

... and also idle adaptation. Plus all the stored fault codes.

SeanR

He's got to drive the car before it will register any faults. And as slow as he drives it...............nevermind. :P

GlennD

John,

Just checking ... Your comment:
"Your LH would have been trying to adapt to your old MAF, Those parameters are held in SRAM which looses its data when you unplug the LH or do a battery disconnect."

is only valid for 87+ MY cars. I do not believe this would be the case for an 85-86 MY car given the simpler LH. If my assumption is incorrect, could you please straighten me out?

Thank-you

John Speake

Hi Glenn, yes only applicable to 87 and later cars. These cars have LH2.3, earlier LH cars use LH2.2 which don't have SRAM or any diagnostic capability.

GlennD

John,

Much thanks

Glenn

Herman K

The idle adaption mode with the "hammer" and engine running resets my idle to 675 RPM. I have found that the adapter mode is a little tricky to find on the hammer but works great on my GTS

Chuck Schreiber

Sean,
Do you hit this mode (that Herman mentions) when you go through the Hammer Sequence??

SeanR

Yup. Sure do.