1999 montana code301

Hi can anyone give me any advice on narrowing down the solution to this code problem? i changed the plugs,wires,and 3 coils and am still getting the 301 code.any suggestions will be appreciated..thanx

It is possible that the injector is bad and causing your problem. It appears that when most folks have done the ignition part replacement then the next step is to look at a bad injector. Before changing the injector check the wiring as you may have a bad wire causing the misfire. If that does not solve the problem then try replacing the injector.

It is possible that the injector is bad and causing your problem. It appears that when most folks have done the ignition part replacement then the next step is to look at a bad injector. Before changing the injector check the wiring as you may have a bad wire causing the misfire. If that does not solve the problem then try replacing the injector.
Thanx i will try that today..I hope it is not hard to get to..I bought one of those code readers from auto zone and reset the computer..As soon as I put the vehicle under load like getting up to speed on I95 on ramp the code comes up blinking again and the van shudders a bit..But at idle it doesn't give a code.Anyway i hope its the injector as i am now getting a bit fed up with this van.I am almost $500.oo in the hole with the dealer with no end to what they want to try..I really think i can do this myself with the help i see on these pages.If i have any luck i will surely share it to save someone else a dollar..

Thanx i will try that today..I hope it is not hard to get to..I bought one of those code readers from auto zone and reset the computer..As soon as I put the vehicle under load like getting up to speed on I95 on ramp the code comes up blinking again and the van shudders a bit..But at idle it doesn't give a code.Anyway i hope its the injector as i am now getting a bit fed up with this van.I am almost $500.oo in the hole with the dealer with no end to what they want to try..I really think i can do this myself with the help i see on these pages.If i have any luck i will surely share it to save someone else a dollar..


I keep getting code 306 on mine, and have had the same thing done as you. could a fuel injection cleaning done at the shop possibly help?

i think my injector is probably the culprit and i am going to try to change it out this weekend..if i have any luck i'll let you know about it.

It is possible that an injection cleaning will help the other injectors. But the injector in question is probably going bad internally and will need replaced if the symptoms are the same as paseaal's and if you have made similar repairs.

I had check engine light that kept coming on sometimes steady and sometime blinking. By the time I got to the dealer, there would be no codes stored.

The end result was a wire connected to the ecm was wearing due to the placement of the wire and was intermittently shorting out. It usually happened as I was making a right turn at relatively quick speeds (like a ramp coming of the highway).

Once the wiring was fixed, there were no more lights coming on.

Don't know if it is the same problem but the dealer happened to locate it by accident after no codes showed up.