Basic Diagnostics YOU CAN DO IT!

[Ccmano]

Originally Posted by daviddu79

My ZR-1 is broken, I changed the spark plugs, ignition coils, spark plugs. Now I think of the injectors. When I have new candles, it works well and the next day it doesn't turn round and I have a cylinder that smells of petrol.

Does the car show any codes? Here’s how to check for codes if you don’t have a scanner.

http://www.zr1specialist.com/HAT%20W...0Info/aldl.htm

You may be correct, bad injectors may be leaking fuel and fouling the spark plugs. If the injectors are original to the car they should be replaced under any circumstances. Do all the spark plugs become fouled with fuel or just a few?

Let us know what you find.
H

[Paul Workman]

Originally Posted by 32valvZ

Luckily I havent had a code issue up to now. I have an MT2500 Snap On scanner. Would I be better off selling it and buying a Tech 1?

Somewhere I think I still have a MT2500 stashed, but for lack of the proper modules it is collecting dust. What modules for the MT2500 do you use for the ZR-1, and are they still available do you know?

[32valvZ]

Originally Posted by Paul Workman

Somewhere I think I still have a MT2500 stashed, but for lack of the proper modules it is collecting dust. What modules for the MT2500 do you use for the ZR-1, and are they still available do you know?

It came with the purchase of the car. Honestly, Ive never even turned it on.... I havent had any issues (knock on wood) regarding codes.

[Paul Workman]

Originally Posted by Ccmano

I don’t want to give the wrong impression here. With some of these diagnostics it’s not just a simple matter of plugging in the scanner and “bang” there’s the answer. In addition to scanner readings many of these diagnostics require voltage, ohm and continuity testing of the wiring harness, modules, relays and switches. That takes a good automotive volt/ohm meter, some know how and practice. This is where help from fellow members come in. To some this will be daunting. You’ll know pretty quickly if your cut out for this or if it’s time to hand it off to a professional. The point being your not wasting time and money throwing parts at it and going further down the road to frustration.
H

Couldn't agree more, Hans!