Trying to Figure out an MPG Problem

Fastback86 · Post by **Fastback86** » Thu Jan 31, 2008 1:49 am

Series8217 wrote:The ECM doesn't control the cold start injector, does it? Isn't there a seperate coolant temp switch for the cold start injector?

Yes.

p8ntman442 · Post by **p8ntman442** » Thu Jan 31, 2008 5:37 pm

yup 2 wire sensor near the one wire temp sensor on the upper right of the lower intake manifold.

Blue Shift · Post by **Blue Shift** » Sun Mar 09, 2008 7:17 am

It's just a bimetal switch, IIRC.

Fastback86 · Post by **Fastback86** » Sun Mar 09, 2008 4:43 pm

Supposing that the Cold Start Injector is stuck open at least partially, unplugging it would not solve the problem (unless the switch is fubar'd or something), so how would one go about stopping the leaky injector? Just replace it with a new one? Seems easier than trying to rig up some kind of plug for both the LIM and the Fuel Rail.

Fastback86 · Post by **Fastback86** » Thu Mar 13, 2008 3:27 pm

Anybody? Bueller?

p8ntman442 · Post by **p8ntman442** » Thu Mar 13, 2008 8:58 pm

pull the injector line from the rail and put in a plug. Leave the injector in the manifold as the lower plug. Both threads are NPT I believe.

Fastback86 · Post by **Fastback86** » Thu Mar 13, 2008 10:34 pm

Good call. I'll have to see if I can find a plug the right size. Don't really feel like pulling the rail off and taking it to the store with me.

lucky · Post by **lucky** » Thu Mar 13, 2008 10:47 pm

pull the line off the rail and the cold start and take that to the store

Fastback86 · Post by **Fastback86** » Thu Mar 13, 2008 10:50 pm

lucky80 wrote:pull the line off the rail and the cold start and take that to the store

Smart man :thumbleft:

lucky · Post by **lucky** » Thu Mar 13, 2008 10:52 pm

thanx. and actually, with the intermediate fitting that's between the line and the rail, you have double the chances of finding something that will work, cause you could either plug the rail or cap the adapter.