Inj. PW voltage-3.0v

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Mar 5, 2005 | 11:23 AM

91GTABird

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From: Memphis, Tn

Car: 92' RS

Engine: 357

Transmission: TH350

Axle/Gears: 4.10

Inj. PW voltage-3.0v

Im still having a problem with Tunerpro show my PW to not be going over 0.50msec. With a volt meter the voltage was going over 3.0v+ when giving it wot and going back up numeriacally in order. Is this correct?

Mar 5, 2005 | 10:56 PM

dimented24x7

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From: Moorestown, NJ

Car: 88 Camaro SC

Engine: SFI'd 350

Transmission: TKO 500

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Where are you measuring from? The tps?

If its at the connectors for the injectors then it wont tell you a whole lot, although I guess you could use it as a primitive dutycycle meter.

Mar 6, 2005 | 09:48 AM

91GTABird

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From: Memphis, Tn

Car: 92' RS

Engine: 357

Transmission: TH350

Axle/Gears: 4.10

im measuring voltage across the injector leads at the connector.

Mar 6, 2005 | 01:02 PM

JP84Z430HP

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From: Johnstown, Ohio

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Re: Inj. PW voltage-3.0v

Quote:

Originally posted by Bri3212
Im still having a problem with Tunerpro show my PW to not be going over 0.50msec. With a volt meter the voltage was going over 3.0v+ when giving it wot and going back up numeriacally in order. Is this correct?

Voltage and pulse width are totally different things. Pulse width is TIME that the injector is on, and the injector is supplied with battery voltage. The reason you don't see batt voltage across an injector is because the voltage is peing pulsed on and off, and your meter is picking up an average voltage, even though it's just going from battery volts to 0 volts.