diagnose tools?

[whatis42]

Can I buy a diagnose tool for my 88 with a 4.0?

 

If not does anyone have some flow charts for diagnosing problems with a voltmeter?

[JeepcoMJ]

yes you can. they even have programmers available. i'm not sure who from on either, but i know you can. (they're expensive)

[fiscus]

This explains most of the sensors & how to test them:

http://www.lunghd.com/Tech_Articles/Eng ... ostics.htm

[87manche]

an 88 will be Renix.

You've got two choices.

The AMC DRBII scanner, with the Jeep adapters

The Snap on 2500 with the jeep adapters.

Both are going to be expensive.

With a renix rig you can diagnose most everything with a multimeter and a flow chart.

Get yourself a good DMM, and a manual. You'll be better off anyway, for when it breaks down in the middle of nowhere you'll be familiar with it's operation.

 

As far as a programmer, nothing available. There was a group in europe attempting to decode the ECU, as renault used it for a few more years over there and it was quite popular. Still, that project seems to be bogged down and hasnt had any updates in a while.

 

The closest thing you'll get to a "chip" is the high altitude CPS, it advances the timing slightly.