Trooper cranks but wont start

[Guest Lenny]

Tried it again and this time it worked, but I had to floor it to get it to start, but at least it started, I've been trying to get it to start using the first part of the throttle, but when I pull it or coast it, I end up floor boarded so I should probably start just flooring it and see if that works. When I try to start with minimal throttle, I ofter notice the smell unburnt gas. I did get my malfunction light hooked up and once the engine is running, it goes out, tried unhooking a few sensors and the light came on.

Kinarfi

Good work on the fault code light. Now if we can find a scanner that will read the computer for diagonistic we will be all set. There is not a plug in recepticle for the scanner but the terminals for it are on the compuuter and the schematic for the Trooper shows the plug and which pins the scanning leads from the computer go to, so we could get one hooked up. I'm thinking that a lot of standard scanners would work being that it is a Seimens or is it Bosch computer. I dought that they set up different codes for all the different cars. A lot of the car computers look idenical although they may have different call up tables telling them how to respond to various conditions, they probably all have the same code for same sensors not working. Anybody have any thoughts on this.

Lenny

[Kinarfi]

Good work on the fault code light. Now if we can find a scanner that will read the computer for diagonistic we will be all set. There is not a plug in recepticle for the scanner but the terminals for it are on the compuuter and the schematic for the Trooper shows the plug and which pins the scanning leads from the computer go to, so we could get one hooked up. I'm thinking that a lot of standard scanners would work being that it is a Seimens or is it Bosch computer. I dought that they set up different codes for all the different cars. A lot of the car computers look idenical although they may have different call up tables telling them how to respond to various conditions, they probably all have the same code for same sensors not working. Anybody have any thoughts on this.

Lenny

When I take my Yukon for for safety and emmissions testing, the tech plugs in the vehicles computer and get all the info, I think he has just the one plug and I bet they are standardized. Ours should follow, I'll look around and call him.

kinarfi

Any one want to set up the Malfunction light? it's easy, I picked up the +12 volts off of the battery at the winch relay, put a 1 amp fuse inline with a 1000 ohm resistor and a red LED to the blue wire and duct taped it to the computer cover. Can't see it while driving, but that can be changed quite easilly too.

[mlg]

Hi , I believe that joyner system diagnostics are obd2 compliant,they should have standerized trouble codes . It would be pretty easy to wire up you can buy obd2 connector just need power,ground data line terminals added to the connector and use a generic code reader .With some research Iam sure we could find a laptop based program and cable lead to read actual data streams

[Guest Lenny]

Hi , I believe that joyner system diagnostics are obd2 compliant,they should have standerized trouble codes . It would be pretty easy to wire up you can buy obd2 connector just need power,ground data line terminals added to the connector and use a generic code reader .With some research Iam sure we could find a laptop based program and cable lead to read actual data streams

Kinarfi, maybe you could slplit out the talk here about computer diagnostics and put it in it's own thread. That way we may get more input and could resolve the problem for once and for all. Looks like we may be getting close.

Lenny

[Guest Lenny]

Kinarfi, maybe you could slplit out the talk here about computer diagnostics and put it in it's own thread. That way we may get more input and could resolve the problem for once and for all. Looks like we may be getting close.

Lenny

Kinarfi, here is a site showing someone having a starting problem. I figure everything can possibly be of help.

http://forums.nicoclub.com/92-q45-no-start-t121700.html

Lenny

[California Nut case]

Guys I am new to the trooper, but it ran fine until  I changed the starter. Now it will not do the 3 second warmup of the fuel pump and fan. What sensors will stop this initiation function.