Author Topic: Wont start... Any ideas?  (Read 1730 times)

DMDRIFTING

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Start up!
« Reply #30 on: December 12, 2008, 09:20:33 PM »
Quote from: Skifledanabit;564660
Sorry guys, I\'m going to slightly hijack this thread because i\'m having the same problem, except my compression and engine is fine, had that checked over. It seems that if i leave the car for say, two hours, she wont start up again and i have to get her bump started, anytime less than that, say about an hours cooling or 3 or more hours and she starts up fine... i\'ve renewed the spark plugs, I\'ve cleaned the dizzy terminals... argh, someone please help me out here!

Are you running a power FC?

You need to check the Voltage to the TPS \'Throttle Position Sensor\', once the engine is at operating temp the voltage with Throttle close should be between 0.75v and 1.25v and no more than 5.0v at WOT

You check this with the engine off and just the ignition on!

On the power FC its the VTA1 on the sensor check.

I have adjusted mine to 0.90v on closed throttle and haven\'t had a problem with it starting since hot or cold and it is running 9\'s L and T!

Duncan

Offline Skifledanabit

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Wont start... Any ideas?
« Reply #31 on: December 13, 2008, 01:37:59 AM »
Quote from: DMDRIFTING;564832
Are you running a power FC?
 
You need to check the Voltage to the TPS \'Throttle Position Sensor\', once the engine is at operating temp the voltage with Throttle close should be between 0.75v and 1.25v and no more than 5.0v at WOT
 
You check this with the engine off and just the ignition on!
 
On the power FC its the VTA1 on the sensor check.
 
I have adjusted mine to 0.90v on closed throttle and haven\'t had a problem with it starting since hot or cold and it is running 9\'s L and T!
 
Duncan

Fair play... I\'m not an automotive electrician... I\'m more mechanical parts... so in lamens terms...?
1989 Gen 2 EGi http://www.missbanzai.net
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Offline pdtaylor18

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Wont start... Any ideas?
« Reply #32 on: December 13, 2008, 12:22:57 PM »
The TPS is got to be number one priority as its easy to check its setup and is notorious for going oput of adjustment, either a Fluke or two filaments to check this out.
If you adjust the idle then adjust the TPS again.
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DMDRIFTING

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Tps!
« Reply #33 on: December 13, 2008, 03:45:43 PM »
Are you running a power fc?

Offline Skifledanabit

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Wont start... Any ideas?
« Reply #34 on: December 13, 2008, 03:47:44 PM »
I dont know what a power FC is...
1989 Gen 2 EGi http://www.missbanzai.net
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DMDRIFTING

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power fc!
« Reply #35 on: December 13, 2008, 04:01:43 PM »
Power fc is just an after market ecu, and with this and a commander you can read the sensor values!

It just makes it a bit easier to check the voltage for what your trying to achieve :Talking1



Not a problem though, have you got a digital multi meter? If not they are cheap, and can be purchased from a motor factors!

Offline Skifledanabit

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Wont start... Any ideas?
« Reply #36 on: December 13, 2008, 04:14:32 PM »
yeah i have a digital multimeter
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DMDRIFTING

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Ok !
« Reply #37 on: December 13, 2008, 04:28:47 PM »
Right do you have an FD Workshop Manual?

You need a stubby screw driver, and you\'ll need to find the TPS, it sits at the back of the Intake Plenum underneath the Small coolant hose that runs into the Throttle body!

Remove the Plug and check the voltage with you Multi meter!

Hang on, I will get the manual on here for you!

DMDRIFTING

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Hope this helps?
« Reply #38 on: December 13, 2008, 04:40:02 PM »