newpontiac Posted September 30, 2004 Report Posted September 30, 2004 Com On Guys and share your Low Cost/Tech Diagnostic Secrets here. I have one to get us started. To check to see if your Fuel injectors are getting their signal you do not need an expensive diagnostic tool. Just get a 194 automotive bulb (very common at Wal Mart,probably one on your car right now) bend the metal wires and stick it in your injector connection, if it flashes when you crank the engine, you know you are getting a signal there and can go on to other things to check. Anybody know of low cost ways to check the following MAF/MAP sensors IAC Transmission Solenoids Fuel Pumps Crank/Cam Sensors Ignition Modules Coils EGR Relays Fuel Systems Ignition Systems Cooling System Leaking/Burnt Valves etc.etc. etc. etc. etc. Come On I know you got, now give em up. Thanks Quote
per0781 Posted September 30, 2004 Report Posted September 30, 2004 multimeter and service manual Quote
jeremy Posted September 30, 2004 Report Posted September 30, 2004 i used to use a paperclip to pull codes on my old Fiero(s) Quote
JoroCorona Posted September 30, 2004 Report Posted September 30, 2004 Using a paperclip is a constant for most older GMs. A multimeter is your friend. Quote
DaveFromColorado Posted September 30, 2004 Report Posted September 30, 2004 you can get a "noid" light that you can put on the wiring harness in place of the injectors to visually see if the signal is getting to that harness. they sell them real cheap at autozone/napa or other major parts stores. --Dave. Quote
Crimson Fury Z Posted September 30, 2004 Report Posted September 30, 2004 paper clips own all! 8?-93 Quote
SEiZe Posted September 30, 2004 Report Posted September 30, 2004 A long ruler or piece of sanded wood to use as a stethoscope to hear how the engine is running. Now thats low tech. Quote
supreme_style21 Posted September 30, 2004 Report Posted September 30, 2004 A long ruler or piece of sanded wood to use as a stethoscope to hear how the engine is running. Now thats low tech. A broomstick works fairly well. Quote
Canada Posted October 1, 2004 Report Posted October 1, 2004 I prefer a screwdriver. Voltmeter, fuel rpessure gauge, and paper clip. Quote
omegaprofit Posted October 1, 2004 Report Posted October 1, 2004 You can test just about anything electrical with a multimeter. Relays can also be tested with a jumper wire, circiuts with a test light. Fuel pumps with a fuel pressure tester ($40) or listen for it running lol Leaking/burnt valves: compression tester $50 Worn valve guides, worn rings, valve springs, vacuum leaks: vacuum guage $50 Some of those might not be very cheap, but hey they work. Quote
Canada Posted October 1, 2004 Report Posted October 1, 2004 The problem with only listening to a fuel pump is you can't diagnosis it if the pump is simply weak.....and not all the way out. Actually, screw a voltmeter............test lights are the ultimate low budget tool........just becareful when you get to PCM work..........they are not high resistance machines such as a Fluke 87. Quote
ShockTherapy Posted October 5, 2004 Report Posted October 5, 2004 Using a paperclip is a constant for most older GMs. A multimeter is your friend. word. Quote
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