Looking for some help before I give up on my 88'
05-09-2014, 11:20 PM
#46
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Hobo Freight has them quite cheap.
05-09-2014, 11:37 PM
#47
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Year: 90,84
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Engine: 4.0,2.5
I actually bought a couple of the $2.99 China ones of Ebay. Longer story shorter, I've been off grid well over 30 years so I measure allot of 12V. The Harbor Freight $5 one is actually better! Actually if you can walk in, you might get one for 3 or $4. Home depot and wall mart have them, 20-$25. I tried one and ended up putting it's battery in one of the cheapo's before the battery was dead. Maybe I was just unlucky. I'd say the cheap usually read accurately enough, just the leads are crap, and the led display will screw up.(never get one wet!) If you are measuring DC amps (which you likely won't)...well it's like playing craps. (snake-eyes being something smokes and you are not using that one for amps anymore) 
Last edited by DFlintstone; 05-09-2014 at 11:55 PM.
05-10-2014, 12:06 AM
#48
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Quite cheap indead ......http://www.harborfreight.com/automot...ter-69096.html...........Up mighty late gentlemen ......
05-10-2014, 12:08 AM
#49
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Quite cheap indead ......http://www.harborfreight.com/automot...ter-69096.html...........Up mighty late gentlemen ......
05-10-2014, 07:10 AM
#55
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05-10-2014, 08:44 AM
#56
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I think the OP needs some a picture of the "back probing" the connector and hopefully showing a reading on the voltmeter if anyone has one handy. I found one but it isn't the best.
05-10-2014, 09:27 AM
#57
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This?
05-10-2014, 10:44 AM
#58
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Was this I supposed to do? Because this is what I didn't do. Am I supposed to try and start it while back probing?
05-10-2014, 12:38 PM
#59
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No. They got a little off track....You would need to back probe to check/adjust the TPS, or some of us might check their 02 sensor....(but you need an analogue meter for the 02 sensor!)
No back-probing is necessary for the ground resistance or the CPS output test. Just to be doubly clear. In Cruisers second photo he is back probing with the connector unplugged. This would, (in theory), hold your probes on say, the two wires to the CPS, but "back probing", (tapping into a circuit without breaking it), is not how to check a Renix CPS. You could check a ground ether way, directly at the plug, or probing the wire any you can reach it.
No back-probing is necessary for the ground resistance or the CPS output test. Just to be doubly clear. In Cruisers second photo he is back probing with the connector unplugged. This would, (in theory), hold your probes on say, the two wires to the CPS, but "back probing", (tapping into a circuit without breaking it), is not how to check a Renix CPS. You could check a ground ether way, directly at the plug, or probing the wire any you can reach it.
Last edited by DFlintstone; 05-10-2014 at 12:53 PM.
05-10-2014, 01:36 PM
#60
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Year: 1990
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