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djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32632
Location: Reading Pennsylvania
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 Posted: Mon Mar 15, 2021 3:34 pm Post subject: Who wants a Damnagon? Was running GREAT! /Solved |
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So, I got this 90 Tintop back together and after some tweaking, it was running very good yesterday mid afternoon.
Very good actually.......
This morning I get up, temperatures in the low 20’s, yesterday was pushing 60.
It was hesitant to fire but did on the 2nd try and from that point it was all downhill!
It searched for an idle, up and down, fast idle to almost stalling, back and forth.
Finally it stalled.
It didn't want to start after that.
The coolant was just beginning to get warm but not at all up to temperature.
I hooked up the fuel pressure gauge, a tad low at 26psi so I put in a new pressure regulator.
Still about 26 psi.
Crap! That old fuel pump I decided to run is dying!
I put in the new Bosch fuel pump.......
Yep, you guessed it!
26 psi.
Now I'm thinking my pressure gauge is crap!
Ok, let's assume fuel pressure is good, gauge is bad.
Spark.
I have an in line spark tester.
I plugged it in at the dist cap using the coil wire.
Frequently happy sparks!
OK .......
Temp II sensor is new and sadly right now warm.
I tried unplugging it but no joy.
I found a forgotten ground wire hanging under the coil, this has got to be it!
Cleaned it, hooked it up...... no change.
Part of the poor running is a backfire.
Timing is right, I set it the other day. Distributor clamp is tight.
When it backfires a puff of smoke came out by the throttle body, more exactly the #1 intake boot.
The clamp wasn't on properly..... this HAS to be it!
Fixed it...... no joy!
What the heck?
I wasted a day on this thing and it still won't run!
Tomorrow when it is cold I'll ohm out the air and water temperature sensors before trying to start it and see what they say.
I'll check them at the sensor itself and also at the ECU plug.
To say that I am baffled is an understatement!
Maybe the ECU doesn't like being cold?
I may see if Steve will lend me his extra ECU to try before I spring $250 on a new one.
Color me frustrated!
Spark, Fuel and Compression. ...... it won't start and run.
I'm overlooking something.
Dave
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Last edited by djkeev on Wed Mar 17, 2021 7:28 am; edited 3 times in total |
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DanHoug
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Joined: December 05, 2016
Posts: 4800
Location: Bemidji, MN
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| Posted: Mon Mar 15, 2021 3:41 pm Post subject: Re: Who wants a Damnagon? |
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you'll get this! after years of coaching others, this is how karma reminds the learned of humility. right there with ya.
you checked fuel pressure but since this hasn't ran in a while, check fuel SPRAY.
you checked timing but had a backfire event... check it again as the dist may have shifted.
but all this is for naught because you need to plug your AFM back in!!!!
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-dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com |
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DanHoug
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Location: Bemidji, MN
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| Posted: Mon Mar 15, 2021 3:46 pm Post subject: Re: Who wants a Damnagon? |
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actually, unless the engine rocked i know your AFM is plugged in. BUT the backfire may have whacked the AFM vane and broke it or something wierd. pull the black cover and see if things are moving properly.
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-dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com |
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djkeev
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Joined: September 30, 2007
Posts: 32632
Location: Reading Pennsylvania
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DanHoug
Samba Member
Joined: December 05, 2016
Posts: 4800
Location: Bemidji, MN
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| Posted: Mon Mar 15, 2021 3:59 pm Post subject: Re: Who wants a Damnagon? |
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ya gotta pull the injector pairs and see if they are squirting.
_________________
-dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com |
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panel
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Joined: December 02, 2001
Posts: 1091
Location: Victoria B.C. Canada
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| Posted: Mon Mar 15, 2021 4:02 pm Post subject: Re: Who wants a Damnagon? |
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But can you see a spark at each plug gap? Just an idea 
| Quote: |
Spark.
I have an in line spark tester.
I plugged it in at the dist cap using the coil wire.
Frequently happy sparks! |
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panel
Samba Member
Joined: December 02, 2001
Posts: 1091
Location: Victoria B.C. Canada
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| Posted: Mon Mar 15, 2021 4:04 pm Post subject: Re: Who wants a Damnagon? |
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| DanHoug wrote: |
| ya gotta pull the injector pairs and see if they are squirting. |
^^ This !
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djkeev
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Joined: September 30, 2007
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Location: Reading Pennsylvania
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djkeev
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DanHoug
Samba Member
Joined: December 05, 2016
Posts: 4800
Location: Bemidji, MN
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| Posted: Mon Mar 15, 2021 4:27 pm Post subject: Re: Who wants a Damnagon? |
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gotta a noid and remote starter switch there? prolly in NJ, eh?!
_________________
-dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com |
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djkeev
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Joined: September 30, 2007
Posts: 32632
Location: Reading Pennsylvania
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djkeev
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crazyvwvanman
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Joined: January 28, 2008
Posts: 9937
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| Posted: Mon Mar 15, 2021 4:48 pm Post subject: Re: Who wants a Damnagon? |
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Your year FI harness should have a second single pin connector along the firewall while earlier had only 1 there.
(the 1 all had was for the hall rpm signal to the ICU)
The more interesting very late 2nd connector is for the Temp2 sensor.
If you can spot this connector it is a handy place for measuring the Temp2 reading.
Of course it is also an additional failure point between the sensor and the ECU so check and perhaps clean it in any case.
Mark |
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djkeev
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Location: Reading Pennsylvania
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djkeev
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SyncroHead 
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Joined: May 23, 2005
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Location: Northern Nevada
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| Posted: Mon Mar 15, 2021 5:52 pm Post subject: Re: Who wants a Damnagon? |
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| djkeev wrote: |
I hooked up the fuel pressure gauge, a tad low at 26psi so I put in a new pressure regulator.
Still about 26 psi. |
This "smells" like gas to me, and I'm suspicious of fuel pressure.
Was the new pressure regulator, actually new or just a different one that once worked?
Jim Davis
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| sphet wrote: |
| I have *no* idea what the previous owner carried in his Westy... angry donkeys? |
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bobhill8
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Posts: 737
Location: MA
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| Posted: Mon Mar 15, 2021 6:00 pm Post subject: Re: Who wants a Damnagon? |
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Sorry Dave - looks like #6 is open. I will post a pic of the page in a sec.
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1986 Westy
1971 Squareback |
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djkeev
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bobhill8
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| Posted: Mon Mar 15, 2021 6:03 pm Post subject: Re: Who wants a Damnagon? |
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1986 Westy
1971 Squareback |
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djkeev
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