No RPM signal while cranking
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Joined: Jun 2000
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No RPM signal while cranking
I have checked this 100 times. I still can't get a signal to my scan tool to tell me RPM's while I am trying to start my engine. '89 TPI that doesn't start well. I have an OTC Monitor 4000e. When I crank the engine, I get spark to the plugs, and the injectors are firing, according to the NOID light, but the scan tool does not show any RPM until I actually get the engine to crank. I just replaced the ECM. Anyone have any ideas?
Supreme Member
Joined: Jul 1999
Posts: 1,294
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From: was: Palmdale, Ca
Car: was: 1984 Camaro Z28
Engine: was: L69
Transmission: was: 700-R4
The actual rpms while cranking are very low, maybe too low for the scan tool you are using to register.
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George P. Lara
1994 Z28 LT1 T56
1984 Z28 High Output
Member: SCCA, SCFB, SC3GFB
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George P. Lara
1994 Z28 LT1 T56
1984 Z28 High Output
Member: SCCA, SCFB, SC3GFB
Thread Starter
Junior Member
Joined: Jun 2000
Posts: 84
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If I spray a little fuel into my throttle body, the car starts right up. I have 42psi at the regulator while cranking. Almost seems as though the injectors are not putting enough fuel in the engine 
. I don't have a cold start injector. Any more ideas?
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'89 GTA, Ported Plenum, BBK throttle body, 24lb Motorsport injectors, Jet stage 2 chip, AFPR, no cats and a Flowmaster.
'95 GMC soon to be 383 daily driver w/Howell multi-point injection conversion
[This message has been edited by freeze92 (edited October 04, 2000).]
. I don't have a cold start injector. Any more ideas? ------------------
'89 GTA, Ported Plenum, BBK throttle body, 24lb Motorsport injectors, Jet stage 2 chip, AFPR, no cats and a Flowmaster.
'95 GMC soon to be 383 daily driver w/Howell multi-point injection conversion
[This message has been edited by freeze92 (edited October 04, 2000).]
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