Rookie starting Issues 76 fuel injected

[vw76westy]

I have a Gremlin in my bus





My bus will start perfectly on the 1st crank

When its stone cold

Or when hot



But while it's warming up or after its warmed up

Any suggestions

I want to reaffirm it will start at "first crank" when cold or hot


But not quite hot

It sometimes stalls if it turns off it won't restart
Unless I walk away and wait for it to be cold


If I keep foot on gas during this stage
(First 5-10 min of driving, after 2-3 of idling)
It will be fine....




I'm assuming this issue is either the
Temp sensor under plenum
Or
the aux air


Problem is they test out when
Stone cold and hot
And
Its twilight when I have issues

I'd rather find the bad part
Than simply replace parts until problem goes away
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quote from bay window bus buyers guide........
The Type 4 engine is considered by many to be VW's finest air-cooled motor,

[sjbartnik]

Is this a poetry jam?

Before suspecting FI, basics:

Valve adjustment
Ignition timing (what do you have it set at?)
VACUUM LEAKS

This FI system is intolerant of vacuum leaks. Make a smoke tester and see what you've got. How old are the injector seals, the intake plenum boots, all the vacuum hoses?
_________________
1965 Volkswagen 1500 Variant S
2000 Kawasaki W650

[vw76westy]

Really.......


Since the bus starts and drives fine
Valve adjustment and timing has absolutely nothing to do
With issue

A vacuum leak is possible but then i would expect
Problem to be a more consistent while driving
And at all other times

If I did not know any better
You'd be sending me on a time wasting mission


Given the reliable consistency of my issue
The only other thing I can think of is
Is temp2 sensor or even the afm
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quote from bay window bus buyers guide........
The Type 4 engine is considered by many to be VW's finest air-cooled motor,

[skills@eurocarsplus]

the bus starts when it's warm

the bus starts when it's cold

I have a feeling that it's beginning to mold

is that poetry or a haiku?
_________________

[vw76westy]

The bus starts when it's cold

But not when its warm

If I start bus let it idle for 2-3 min
Then turn it off
It won't restart


If I drive it 2, 3 blocks
To get food
It won't start after getting food


If I drive 50 miles to a car show
Then for the next hour or so I'll have no problem
Starting
As long as it hot....


The only time I have a starting issue
Is when the bus is warm.....
_________________
order your BAY WINDOW T-SHIRT here http://www.thesamba.com/vw/classifieds/detail.php?id=1526918

quote from bay window bus buyers guide........
The Type 4 engine is considered by many to be VW's finest air-cooled motor,

[sjbartnik]

[Mispeld]

[Wildthings]

Try pulling the plug off your Cold Start Valve once it has been started cold and see if that fixes your problem.

[BoltonFTW]

[Wildthings]

[SGKent]

what it tells me Raul is that you should do a smoke test and look for a vacuum leak first. When cold the CSV gives a boost of fuel so it starts because the mixture is richer. When it is hot the air to fuel mixture is close enough it runs. When it is warm it is too lean and needs extra fuel because of the vacuum leak so it doesn't run.

The AAR acts like you open the throttle a little. If it idles fine the first three minutes if you hold the throttle open a little then it would be the AAR.

The CSV provides a little extra fuel. If it was still sending extra fuel when hot it would easily flood out.

All this assumes that you have checked the fuel pressure and have adequate pressure & that the relays or pump are not doing some kind of thermal trick. Also it assumes that the ignition switch is good. When they go bad they do some funny things.
_________________
“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[sjbartnik]

Also keeping in mind that the CSV only gets power when the starter is operating. If the TTS is providing a ground path when starter is operating, then CSV will fire. If it's too warm and TTS is not providing ground path, no CSV activation.

CSV, when wired properly anyway, does not get power unless the starter is operating so it cannot fire when starter is not operating.

It can leak though, but pulling the electrical plug would have no effect on that.
_________________
1965 Volkswagen 1500 Variant S
2000 Kawasaki W650

[BoltonFTW]

OP, curious if you resolved your Gremlins
_________________
Drew
---------------------------------------------------------
1978 Westfalia Campmobile Deluxe 2.0 FI w/hydraulic lifters
1977 Westfalia Weekender Tintop (very first car - SOLD )
1992 VW Corrado VR6 (SOLD)

[vw76westy]

Well after spending many stranded days

After spending countless hours
Testing things that work perfectly when I test them

After going threw the pain in the ass
Of changing out parts 1 by 1
1 week at a time


The entire problem was the ......






The........


" Temp2 "
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order your BAY WINDOW T-SHIRT here http://www.thesamba.com/vw/classifieds/detail.php?id=1526918

quote from bay window bus buyers guide........
The Type 4 engine is considered by many to be VW's finest air-cooled motor,

[vw76westy]

A story only you vw people could appreciate


Got the gremlins out
Bus is reliable again.....
You guys all know this great feeling

So I decide to take the bus to meet up with friends on a fri night


As I get off freeway clutch cable breaks
Bus stalls.....

So I figured I'll start bus in 2nd gear to get somewhere safe
Except the battery decided it was not holding a charge any more

So after pushing it a block
I got my spare cable out and replaced clutch cable


Then realized I left jumper cables sitting on the ground
At my house

most people today dont carry jumper cables.....
_________________
order your BAY WINDOW T-SHIRT here http://www.thesamba.com/vw/classifieds/detail.php?id=1526918

quote from bay window bus buyers guide........
The Type 4 engine is considered by many to be VW's finest air-cooled motor,

[BoltonFTW]

[airschooled]

Sorry that happened
Temp Two is always suspect
So is Spark, Robbie
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Learn how your vintage VW works. And why it doesn't!
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[Abscate]

I want to see this Gremlin. I can’t see it fitting in either the rear or slider door.

Stone cold.

Igneous or metamorphic?

If you walk 2-3 blocks to get food, that solves that problem.

Glad you are back on the road, Raul.

With the hosting comes the roasting.
_________________
.ssS!

[TomWesty]