Red Nightmare Posted January 4, 2011 Report Share Posted January 4, 2011 I do not believe it is bad but was wanting to test it the other day when my car had a cold-start issue. So I dug around the area behind the TB and found all kinds of other neat sensors and such but no MAP. ON the air intake tube there is a MAF close to the air box and a intake air temp sensor 1/2 way down the tube.. So I didn't seem to find one along the firewall or anywhere on the UIM. I don't remember one on the LIM but then back when I had all that stuff pulled i wasn't really looking for it either. Does this particular engine maybe not use one or am I stupidly overlooking it somehow? thanks. Quote Link to comment Share on other sites More sharing options...
95 vert Posted January 4, 2011 Report Share Posted January 4, 2011 Don't believe there is one. Anybody? Quote Link to comment Share on other sites More sharing options...
xtremerevolution Posted January 4, 2011 Report Share Posted January 4, 2011 (edited) There's a MAP Sensor. How does the engine determine fueling while cranking? What happens if the MAF ever fails? I think just about every car out there has a MAP sensor. Its required to determine atmospheric pressure, which is used to calculate fueling at higher altitudes, and it is requred for the VE tables to work properly. Follow vacuum hoses and you're bound to run into it. Edited January 4, 2011 by xtremerevolution Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted January 4, 2011 Report Share Posted January 4, 2011 Here's a diagram for you showing the location: Quote Link to comment Share on other sites More sharing options...
Red Nightmare Posted January 4, 2011 Author Report Share Posted January 4, 2011 Vacuum module with map sensor - Alright, that makes sense, the vacuum diagram under the hood calls it something else but this makes sense. Something about "purge canister purge valve" but MAP also makes sense. Now being on the subject of the UIM, does anyone have a list of cuss words you are suppose to say when trying to detach the coolant hose clip right under the TB area? Quote Link to comment Share on other sites More sharing options...
95 vert Posted January 5, 2011 Report Share Posted January 5, 2011 There's a MAP Sensor. How does the engine determine fueling while cranking? What happens if the MAF ever fails? I think just about every car out there has a MAP sensor. Its required to determine atmospheric pressure, which is used to calculate fueling at higher altitudes, and it is requred for the VE tables to work properly. Follow vacuum hoses and you're bound to run into it. Just couldn't remember. Been too long since I looked at a 3.4. Ignore my previous post please Quote Link to comment Share on other sites More sharing options...
Andrew Posted January 5, 2011 Report Share Posted January 5, 2011 Vacuum module with map sensor - Now being on the subject of the UIM, does anyone have a list of cuss words you are suppose to say when trying to detach the coolant hose clip right under the TB area? i dont remember it being too awfully hard. Quote Link to comment Share on other sites More sharing options...
Galaxie500XL Posted January 5, 2011 Report Share Posted January 5, 2011 The purge canister valve sits behind the plenum on the passenger's side, very close to the device you pointed out. However, checking my '95, there is a device connected to the end of the plenum as shown in the diagram, but there are no provision for electrical connectors attached to the device. It's just a vacuum block on my '95 LQ1. Quote Link to comment Share on other sites More sharing options...
Red Nightmare Posted January 5, 2011 Author Report Share Posted January 5, 2011 (edited) The purge canister valve sits behind the plenum on the passenger's side, very close to the device you pointed out. As I understand it, this device also serves as the MAP, like it is built in. Not exactly sure but as I understand. However, checking my '95, there is a device connected to the end of the plenum as shown in the diagram, but there are no provision for electrical connectors attached to the device. It's just a vacuum block on my '95 LQ1. This device provides vacuum to the fuel pressure regulator and the other hose leads to the transaxle. Or as they would say in poor english - This object gives sucking to the tranny and makes the engine have gas. Edited January 5, 2011 by Red Nightmare Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.