Date: Mon, 14 Nov 2016 20:20:57 +0000
Reply-To: Michael Magnani <mfmagnani@SBCGLOBAL.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Michael Magnani <mfmagnani@SBCGLOBAL.NET>
Subject: Re: 2.1 WBX Warm Start Troubles
In-Reply-To: <040801d2363a$b3fea9a0$1bfbfce0$@gmail.com>
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Here's an update on my 2.1 WBX warm start troubles.Per Dennis Haynes suggestions, I checked the ground connection of the Temp 2 Sensor. It reads a steady .5 Ohms.Also per Dennis, I inspected my ignition system components. Spark plugs show a nice tan color with no fouling. Cap and Rotor and Spark Plug Wires are less than a year old and look perfect. Both sides of the Ignition Coil read greater than 4K Ohms.Per Stuarts suggestion, I double checked my new Fuel Injectors. They hold pressure for 10 minutes and there's absolutely no evidence of dribbling gas when I stop cranking the engine over.What am I missing?Mike M
On Thursday, November 3, 2016 6:28 PM, Stuart MacMillan <stuartmacm@gmail.com> wrote:
#yiv6378519244 #yiv6378519244 -- _filtered #yiv6378519244 {font-family:Helvetica;panose-1:2 11 6 4 2 2 2 3 2 4;} _filtered #yiv6378519244 {font-family:Helvetica;panose-1:2 11 6 4 2 2 2 3 2 4;} _filtered #yiv6378519244 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv6378519244 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;}#yiv6378519244 #yiv6378519244 p.yiv6378519244MsoNormal, #yiv6378519244 li.yiv6378519244MsoNormal, #yiv6378519244 div.yiv6378519244MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;}#yiv6378519244 a:link, #yiv6378519244 span.yiv6378519244MsoHyperlink {color:blue;text-decoration:underline;}#yiv6378519244 a:visited, #yiv6378519244 span.yiv6378519244MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv6378519244 span.yiv6378519244EmailStyle17 {color:#1F497D;}#yiv6378519244 .yiv6378519244MsoChpDefault {font-size:10.0pt;} _filtered #yiv6378519244 {margin:1.0in 1.0in 1.0in 1.0in;}#yiv6378519244 div.yiv6378519244WordSection1 {}#yiv6378519244 Good luck, I hope you find a leaking injector, or I’m at a complete loss. Stuart From: Michael Magnani [mailto:mfmagnani@sbcglobal.net]
Sent: Thursday, November 03, 2016 12:08 PM
To: Stuart MacMillan; vanagon@GERRY.VANAGON.COM
Subject: Re: 2.1 WBX Warm Start Troubles I just checked the ground at the Temp 2 Sensor. It's a solid .5 Ohms at the Brown Wire and I have 5.1 VDC at the White wire. Now I"m going to check my new fuel injectors per Bentley 24.56 Mike M On Tuesday, November 1, 2016 3:45 PM, Stuart MacMillan <stuartmacm@gmail.com> wrote: Mike,
You say "the Fuel Pressure Regulator works correctly.But....The residual fuel pressure test was unsatisfactory until I clamped off the fuel injector hoses.The new fuel injectors behave the same."
If pressure isn't held for 10 min you have an injector fuel leak, which is proven by clamping them off. It must be one or more of the new injectors that's at fault. Pull them one at a time and check for spray pattern (per Bentley) and then for leaks by waiting 10 min between tests. That fuel is going somewhere, and I sure sounds like it's going into the cylinders.
Stuart
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Michael Magnani
Sent: Tuesday, November 01, 2016 1:38 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: 2.1 WBX Warm Start Troubles
I apologize for the above format.
It looked proper when I sent it.
It was much more readable on my end.
Sorry,Mike M
On Tuesday, November 1, 2016 1:32 PM, Michael Magnani <mfmagnani@SBCGLOBAL.NET> wrote:
My van has trouble starting when warm.The fuel mixture is too rich.I have to depress the gas pedal to open the throttle plate to get enough air so it will start.After it starts it stumbles for a few seconds until it clears the over-rich condition and then it runs perfectly.
1990 2.1L WBXManual TransmissionShoebox Electronix 8691V ECU MonitorGood BatteryGood StarterGood Cranking SpeedGood GroundsNew Fuel Lines and HosesGood Cold Starting (Starts Immediately)No Other Running or Performance Problems.Swapped out the Oxygen Sensor with a known good one.New Air Filter.New Fuel InjectorsNew Fuel Injection Temperature SensorNew Air Temperature SensorNew Throttle Position SwitchPer Bentley 24.55, the Fuel Pressure Regulator works correctly.But....The residual fuel pressure test was unsatisfactory until I clamped off the fuel injector hoses.The new fuel injectors behave the same.
I'm looking for guidance.Thanks Mike Magnani
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