| Author |
Message |
walterdartt
Samba Member
Joined: March 12, 2012
Posts: 31
Location: Bellingham WA
|
 Posted: Mon Aug 11, 2014 2:39 pm Post subject: after F.I. 2.0 1977 engine remove/instal wont run |
 |
|
spark to plugs, gas to combustion chamber. i unplugged the cylinder head sensor and ran ruff, so i tuned up best i could with engine not running. then nothing untill i plugged sensor back in and then it will only run if i give it just the right amount of gas, and dies under a load or gas flow changes. after a few tries it wont even fire. unless i unplug (or plug in) the sensor then it will try to start one to three time, then it wont. I dont know much about F.I. system any advice would be much help. Thank you for your time Walter Dartt.
P.S. the sensor was not plugged in befor i removed engine and it ran just fine. I think |
|
| Back to top |
|
 |
kkjellquist
Samba Member
Joined: June 04, 2013
Posts: 752
Location: Asheville, NC
|
|
| Back to top |
|
|
SGKent 
Samba Member
Joined: October 30, 2007
Posts: 42449
Location: at the beach
|
|
| Back to top |
|
|
walterdartt
Samba Member
Joined: March 12, 2012
Posts: 31
Location: Bellingham WA
|
| Posted: Mon Aug 11, 2014 4:25 pm Post subject: im self tought but im capable not much electical expereance |
|
|
| its timed i did it buy moveing the engine by hand and useing a time light with ignition on. |
|
| Back to top |
|
|
Wildthings
Samba Member
Joined: March 13, 2005
Posts: 52307
|
| Posted: Mon Aug 11, 2014 6:29 pm Post subject: |
|
|
| Sounds like you are either too rich or too lean or maybe both, lean while starting and too rich once it hits a few times.. A vacuum leak would cause a lean problem while being too rich could be caused by a faulty TSII sensor or wiring for the same. Do you have all FI your grounds hooked up? Does the fuel pump run when you open the door in the AFM while the ignition is on? |
|
| Back to top |
|
|
walterdartt
Samba Member
Joined: March 12, 2012
Posts: 31
Location: Bellingham WA
|
| Posted: Tue Aug 12, 2014 11:59 am Post subject: |
|
|
| all ground connected. just starts right up sounds awsome untill i drop the key into running position. the dies promply. im looking at how to start testing some of the FI components. also i replaced 2 of the sensor plugs that were broken posible i got the wires switche up does any one know if that would cause this and how to test that? |
|
| Back to top |
|
|
walterdartt
Samba Member
Joined: March 12, 2012
Posts: 31
Location: Bellingham WA
|
| Posted: Tue Aug 12, 2014 12:07 pm Post subject: |
|
|
| I also replaced the ts2 sensor |
|
| Back to top |
|
|
walterdartt
Samba Member
Joined: March 12, 2012
Posts: 31
Location: Bellingham WA
|
| Posted: Tue Aug 12, 2014 12:26 pm Post subject: |
|
|
| fuel pump seems to fun when i open afm door i hear a click and a constant noise when held open |
|
| Back to top |
|
|
Manfreds78bay
Samba Member
Joined: February 27, 2009
Posts: 807
Location: PNW
|
| Posted: Tue Aug 12, 2014 12:28 pm Post subject: |
|
|
| walterdartt wrote: |
| all ground connected. just starts right up sounds awsome untill i drop the key into running position. the dies promply. im looking at how to start testing some of the FI components. also i replaced 2 of the sensor plugs that were broken posible i got the wires switche up does any one know if that would cause this and how to test that? |
So it keeps running when you hold it in the start position and stops when the key is in the run position at the ignition switch?
Sounds like an electrical problem.
1. Try to remote start it from the starter if you have one. If it does start you might have an ignition switch issue.
2. Make sure the double relay is correctly plugged in to the FI wiring harness
3. Inspect the FI wiring harness for bad wires that might be grounding. Is the FI wire plugged into the ignition coil? You should have one white wire (they are actually all white) that plugs into the coil. I can't remember if it's the positive or negative side. Check bentley.
4. Make sure all your vacuum hoses are property connected. http://ratwell.com/technical/VacuumHoses.html
_________________
1985 VANAGON GL Digijet
There is no spoon.
Last edited by Manfreds78bay on Tue Aug 12, 2014 12:50 pm; edited 1 time in total |
|
| Back to top |
|
|
Randy in Maine
Samba Member
Joined: August 03, 2003
Posts: 34890
Location: The Beach
|
|
| Back to top |
|
|
SGKent
Samba Member
Joined: October 30, 2007
Posts: 42449
Location: at the beach
|
| Posted: Tue Aug 12, 2014 12:48 pm Post subject: |
|
|
as indicated by the above Samba members - the ignition switch may be bad or you have an AFM / double relay issue. Here is why.
When the key is turned to start, the fuel pump gets its power from the starter circuit. When you turn the key to run, the fuel pump gets its power from the fuel injection system. There are points in the AFM that make contact when the door is opened. The electricity goes out through the plug in the back of the AFM to the double relay, which turns the fuel pump on. So, the problem can be the ignition switch (common failure), the points in the AFM (common failure), the plug left off or coming off the AFM (common failure), or the double relay (common failure).
_________________
"Most people don't know what they're doing, and a lot of them are really good at it." - George Carlin |
|
| Back to top |
|
|
walterdartt
Samba Member
Joined: March 12, 2012
Posts: 31
Location: Bellingham WA
|
| Posted: Tue Aug 12, 2014 1:03 pm Post subject: |
|
|
| it will run if i give it gas. |
|
| Back to top |
|
|
Manfreds78bay
Samba Member
Joined: February 27, 2009
Posts: 807
Location: PNW
|
| Posted: Tue Aug 12, 2014 1:21 pm Post subject: |
|
|
| walterdartt wrote: |
| it will run if i give it gas. |
Does it run rough when you give it gas? Does it continue running once warmed up?
Could be a vacuum leak that has developed.
Make sure the throttle cable is hooked up properly.
Have you tried increasing the idle speed?
_________________
1985 VANAGON GL Digijet
There is no spoon. |
|
| Back to top |
|
|
SGKent
Samba Member
Joined: October 30, 2007
Posts: 42449
Location: at the beach
|
| Posted: Tue Aug 12, 2014 1:40 pm Post subject: |
|
|
I would check the fuel pressure and see what it says. You may be gravity feeding in the run position and need more throttle to keep it going.
_________________
"Most people don't know what they're doing, and a lot of them are really good at it." - George Carlin |
|
| Back to top |
|
|
walterdartt
Samba Member
Joined: March 12, 2012
Posts: 31
Location: Bellingham WA
|
| Posted: Wed Aug 13, 2014 4:08 pm Post subject: |
|
|
| Can any one tell me where the fuel pressure adjust nut is? |
|
| Back to top |
|
|
busdaddy
Samba Member
Joined: February 12, 2004
Posts: 52750
Location: Surrey B.C. Canada, but thinking of Ukraine
|
| Posted: Wed Aug 13, 2014 4:50 pm Post subject: |
|
|
The what?, best you read those manuals SGKent linked 
_________________
Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
|
| Back to top |
|
|
Wildthings
Samba Member
Joined: March 13, 2005
Posts: 52307
|
| Posted: Wed Aug 13, 2014 4:50 pm Post subject: |
|
|
| walterdartt wrote: |
| Can any one tell me where the fuel pressure adjust nut is? |
Tain't one, if you fuel pressure isn't correct you most likely need a new fuel pressure regulator. |
|
| Back to top |
|
|
walterdartt
Samba Member
Joined: March 12, 2012
Posts: 31
Location: Bellingham WA
|
| Posted: Wed Aug 13, 2014 5:11 pm Post subject: |
|
|
| Ive been reading and wrenching for weeks this is my familys only vehicle if someone could help derect me to where i adjust the fuel pressure you would releive alot of stess for a oerson in need. ive been trying to figure it out. |
|
| Back to top |
|
|
walterdartt
Samba Member
Joined: March 12, 2012
Posts: 31
Location: Bellingham WA
|
| Posted: Wed Aug 13, 2014 5:12 pm Post subject: |
|
|
| OK thank you thats what i thought. |
|
| Back to top |
|
|
walterdartt
Samba Member
Joined: March 12, 2012
Posts: 31
Location: Bellingham WA
|
| Posted: Wed Aug 13, 2014 5:15 pm Post subject: |
|
|
pressure is good and im at a wall i dont know what to test next.
P.S. Thank you all kindly for your time and input it has been much apreciated. |
|
| Back to top |
|
|
|
