Plenum Pull Advice, Starter Rebuild, MAP Sensor Info

[mgbrv8]

Of course its okay Dynomite. I know I need to label all the pics but I am kinda wrapped up in the logistics of the job right now, I will once it all done. My club has a lot of fun events and trips this month and I want it to be ready and reliable in time.

Dave

[mgbrv8]

I rebuilt my starter, all new bearings and bushings works great. but the idea of it happening again really bothered me I really don't like this solenoids design so to give me a way out if it happens again I put a cable running from the stater motor wire ( the Black one) and spliced the purple solenoid wire (the blue one) and sheathed them in abrasive resistant loom material. Now theses wires will be coiled and insulated at the back of the plenum so if it acts up again I can get them and add a external solenoid so my starter can work. I know there will be mixed opinions on this but being a mechanical engineering I am very OCD about this stuff.

Dave

[mgbrv8]

Are both maps sensors Under the hood the same part number??

Dave

[scottfab]

Originally Posted by mgbrv8

Are both maps sensors Under the hood the same part number??

Dave

Both MAP sensors? I only know of one.

[mgbrv8]

Originally Posted by scottfab

Both MAP sensors? I only know of one.

I know there is one behind the intake near the firewall. But I was referring to the one under the computer and above the battery.

Dave

[scottfab]

Originally Posted by mgbrv8

I know there is one behind the intake near the firewall. But I was referring to the one under the computer and above the battery.

Dave

I think that is the vacuum sensor for the secondaries.

[mgbrv8]

Originally Posted by scottfab

I think that is the vacuum sensor for the secondaries.

So would that be the same parts number??

Dave

[A26B]

Originally Posted by mgbrv8

I know there is one behind the intake near the firewall. But I was referring to the one under the computer and above the battery.

Dave

The one you are referring to, under the ECM (later moved to underside of plenum, forward of DIS Module) is an MDP Sensor, Manifold Differential Pressure. They look alike, but are not interchangeable. In fact, the harness plugs will not interchange, i.e. you cannot plug a MAP sensor at the MDP location nor an MDP sensor at the MAP location.

We stock both sensors. If you want to see them, go to the web store & search by the PN's.

You can tell them apart visually if you know what to look for.

[mgbrv8]

Originally Posted by A26B

The one you are referring to, under the ECM (later moved to underside of plenum, forward of DIS Module) is an MDP Sensor, Manifold Differential Pressure. They look alike, but are not interchangeable. In fact, the harness plugs will not interchange, i.e. you cannot plug a MAP sensor at the MDP location nor an MDP sensor at the MAP location.

We stock both sensors. If you want to see them, go to the web store & search by the PN's.

You can tell them apart visually if you know what to look for.

Jerry thank you, in your professional opinion Jerry should the oily map be changed out or should it be fine? Also is this normal to get oil up there or is this caused by another problem in the system? The engine has 80k great compression and no blow by.

Also thank you Jerry for gettin the fuel systems orings to my door so quickly.

Dave

[Paul Workman]

Originally Posted by mgbrv8

Are both maps sensors Under the hood the same part number??

Dave

Only one MAP sensor (#7 - see diagram) at the back of the plenum. Perhaps you're thinking of the (secondaries) pressure switch (#11) under the '90s ECM (for certain) which at some point was later located the plenum, if I recall correctly. Anyway - no two MAPs in the diagram.



P.