| Author | Message | ||
     Kevin Fedyk (Kovert) Member Username: Kovert Post Number: 96 Registered: 05-2003 |
Alright, very confused here. The wife took the 99 Disco 1 to work today since I have a pretty long commute, and on her way to work she came to HARD stop (AS ALWAYS) and the truck began to stutter as if was going to die, then the check engine light came on. Well now the truck seems to almost run better than ever, and seems to have a little more pep (as much as it can have), but the Check Engine light is on. Any ideas on what I should do or check first? The wires and plugs were recently changed along with all my fluids, besides the transmission. Air Filter is brand spanking new (well 2 months), and I cleaned the stepper motor in the fall. So any help would be greatly appreciated it. I did notice the stuttering at a hard stop about a week prior to this just happening though. Thanks | ||
| Kevin Fedyk (Kovert) Member Username: Kovert Post Number: 97 Registered: 05-2003 |
No one has any idea?? I drove it a good 20 miles and honestly it seemed better than normal!! I will take it in to check the code but I'm just looking for some thoughts and opinions. | ||
| Will Tillery (Will) Senior Member Username: Will Post Number: 312 Registered: 11-2002 |
Check the MAF. See if it was clamped back down properly when the air filter was changed. | ||
| Tony DiFranco (Nhrover) Member Username: Nhrover Post Number: 100 Registered: 11-2002 |
did you check the gas cap? sounds stupid but if its loose it can cause the light to go on. | ||
| Kevin Fedyk (Kovert) Member Username: Kovert Post Number: 98 Registered: 05-2003 |
Yep, checked the air filter and also checked the gas cap. Seemed ok. I might just reset the code and see if it comes back right away. Monday I'll get the code checked at AutoZone near work. | ||
| Randall Smith (Mr_smith) Member Username: Mr_smith Post Number: 206 Registered: 04-2003 |
Kevin Best thing to do is have it scanned. That will point you in the direction of what changed that day. These EFI systems are really on the engine for the purpose of meeting fed emmisions requirements. Not an expert on the Bosch EFI system but; The engine may "run better than ever" in the limp home mode. Or if some portion of the EFI system is not operating as designed. Randall | ||
| gregory gibbard (Fj40) New Member Username: Fj40 Post Number: 5 Registered: 01-2004 |
Kevin, let me know what happens w/ your 99 D1. I've got one as well. It seems like such a screwy issue, but have you had issues with parts because of the change to the D2 that year? I went to AutoZone this morning to have them read and clear my codes. They told me they couldn't clear the code though because it was state law that the dealer had to do it. I don't know if that is bunch of crap or not. I'm not sure exactly much money the automakers have dumped into Michigan's legislatures' pockets lately. Maybe the guy was just didn't want to do it? | ||
| Nathan Cooper (Cooper) Member Username: Cooper Post Number: 68 Registered: 10-2002 |
No, they are not supposed to clear the code... but sometimes if a little cash managed to find its way to him.... | ||
| gregory gibbard (Fj40) New Member Username: Fj40 Post Number: 6 Registered: 01-2004 |
That's what I was afraid of. No real easy way to take care of the CE light, at least not yet. Thanks. | ||
| Pugsly (Pugsly) Senior Member Username: Pugsly Post Number: 268 Registered: 11-2002 |
That's crap, dealer doesn't need to clear the codes. Anyone with the right kit can do it. One thought on why the LR might be running better with the CE light on - if it is getting an error reading off of one of the O2 sensors, it enrichens the mixture to prevent engine damage. Has your mileage gone down? Good luck tracking this one down. Make friends with someone with Autologic, etc, that can take a quick look at the codes for you! | ||
| Adam Ross (Discodriveradam) Member Username: Discodriveradam Post Number: 171 Registered: 01-2003 |
At my Autozone, I had the codes read, and then asked them to clear them. They said they couldn't, because of liability, but they said I could. He handed me the OBD II unit, and I erased them. No more Xmas tree on the dash. | ||
| thom mathie (Muskyman) Senior Member Username: Muskyman Post Number: 567 Registered: 11-2002 |
many injection systems go to "Base map" and increases the engine RPM a couple hundred rpm and restrict it from going closed loop when it is throwing a code. this makes a engine with bad idle air motor or a bad O2 sensor run better in alot of cases . But if you run it to long you can really ruin your cats because it runs very rich and produces a ton of unburned hydrocarbons headed at those pricey  $$$$ cats. I had a mercedees 300e that was a monster when the check engine light was on and a slugish kitten with it in the EPA friendly position. | ||
| gregory gibbard (Fj40) New Member Username: Fj40 Post Number: 7 Registered: 01-2004 |
finally, the CE light is out, my new plugs are in. The guy at garage that is just down the street from the house cleared the codes out this morning. So far so good. I drove the 15 miles to work with one eye on the road, one on the dash and fingers crossed. Hopefully the $15 bucks spent on plugs takes care of the issue. I'm sure I'll find out soon after I send back the O2 sensors I had ordered. | ||
| Kevin Fedyk (Kovert) Member Username: Kovert Post Number: 99 Registered: 05-2003 |
Alright, just got home from work and stopped at AutoZone as I left. P1316 - Injector Circuit And I forgot the other one, Cylinder 6 Misfire. Either way, he reset them, and I took my normal 40 mile commute without it coming on and the truck running like a champ. It was always had a slight stumble to it, but it definitely seems peppier. And about the gas mileage. It has gone down, but that started as soon as winter came, well before this. So I'm still stumped as to what caused it. I have put new wires and plugs in about 2 months ago. | ||
| Kevin Fedyk (Kovert) Member Username: Kovert Post Number: 101 Registered: 05-2003 |
Ah and to add to my problems, I know the CAT is going and it is at 86,000 Miles (starting to rattle a bit). The problem now comes I am more than likely taking this truck overseas where I will have to remove the cats, so then I have to figure out some sort of exhaust scheme. Either way, I went out, checked all the wires, reseated them, and the truck seems ok. Under load I don't have a problem although occasionally at highway speed it stutters if I let off the gas and try to go again. I replaced the VSS so that wasn't the problem. | ||
| gregory gibbard (Fj40) New Member Username: Fj40 Post Number: 9 Registered: 01-2004 |
"at highway speed it stutters if I let off the gas and try to go again." For what it's worth, it sounds exactly like my problem. It has done it less than a dozen times in the month that the CE light had been on. I'm not quite sure what it is. From my research the code P1316 is a Misfire Excessive Emissions Fault. Coming from the guru at the dealership they said it is a general fault code that could be anything from plugs, wires, bad gas, ignition. They also told me that the Bosch Platnums, that I had put in a month ago might be creating the misfire. is it still stuttering with the light off? | ||
| Kevin Fedyk (Kovert) Member Username: Kovert Post Number: 102 Registered: 05-2003 |
Yeah it's been stuttering for a while honestly. Ever since I made a long trip back from VA to Buffalo. But I never tripped a light and for a while it had stopped for the most part. It seems as the weather got colder though the problem is coming back and then the code tripped. I put NGK plugs in and OEM wires, so I might try a filter but more and more it is sounding like a sticky valve. | ||
| gregory gibbard (Fj40) New Member Username: Fj40 Post Number: 10 Registered: 01-2004 |
Fortunately, i was able to replicate the slow down, speed up scenario and it stuttered again. so the problem is still there. No light this morning though. It's time to go for the VSS. I've read alot about people getting these from Discount Rover. Does anyone have a phone number or website info? I haven't been able to find anything yet. |
