Hey

I just bought this Ranger and it run's very bad, very hard too start.
when you get it startet you can drive it, but it will stop if you not keep pussing the gas.

I have read out the "blink codes" and got this out.

12
42
41
22
44
45
56
57
61

I have try too claear cods to find out if there was any old in it, but no luck with that.

I have measure this sensor:
TPS:
pin 1-2 3.36k ohm CLOSED
pin 1-2 531 ohm OPEN
IAC:
pin 1-2 30 ohm
pin 2-3 29.9 ohm
pin 1-3 58.9 ohm
pin 4-5 29.9 ohm
pin 5-6 29.9 ohm
pin 4-6 58.8 ohm
AIR TEMP:
3.43k ohm
ENGINE TEMP:
54.8k ohm

I have check the wire from sensor to ECU all good

I have measure the battery 13Volt

I measure 7.9volt on pin 1 and 31 on the ECU main conector

Hope there is somebody there can help me.

The help here in Denmark from the Dealer is very poor.

Regards
Morten Christensen
Denmark

 

Manuals say 80% of efi problems are in the wiring harness and not the sensors which I tend to believe since I had to install enough of these harness "kits" from Polaris.These kit were junk and didn't hold up. Most common is the tbap/maf sensor harness that we had to replace the most of with an occasion tps harness kit. Wiring is very thin,wires can rub and have bare spots,or can even be soft feeling and broken internally. Here's kits that are way better than the Polaris ones,wish I had them while I was still working. Only The Best Plus read these "sticky" posts that deal with the 700/800 efi wiring problems and applies to the 500 also.https://atvconnection.com/forums/pol...ap-wiring.html