How Do I Diagnose These Problems?
#1
Over the last couple weeks I've had some wierd, intermittent problems popping up on my '90 TII:
1. Check Engine Light comes on/off for about 10 seconds at a time - then goes away and I don't get a light for the rest of the day.
2. I started getting a "hesitation" between 2000-3000RPM. No matter how much gas I give it between 2000-3000RPM, the engine revs faster but I don't accelerate. Then around 4000RPM the car takes off, like it has a bigger turbo. It isn't a linear acceleration. I have the stock turbo FWIW. Also the engine was recently rebuilt, and I NEVER got 3000RPM hesitation on the original engine.
3. Today, the car starts, but all the gauges are dead except the Speedo. Also, I have no dash electronics (Heat or A/C), but radio works. Mouse Seatbelts don't work, but I have power windows. Stock Alarm also doesn't arm.
Can someone point me where I should start looking to root cause all these problems? I suspect they are all related.
BTW, I recently had the engine rebuilt & a new Engine Harness put in, if that helps any.
Thanks in advance!
1. Check Engine Light comes on/off for about 10 seconds at a time - then goes away and I don't get a light for the rest of the day.
2. I started getting a "hesitation" between 2000-3000RPM. No matter how much gas I give it between 2000-3000RPM, the engine revs faster but I don't accelerate. Then around 4000RPM the car takes off, like it has a bigger turbo. It isn't a linear acceleration. I have the stock turbo FWIW. Also the engine was recently rebuilt, and I NEVER got 3000RPM hesitation on the original engine.
3. Today, the car starts, but all the gauges are dead except the Speedo. Also, I have no dash electronics (Heat or A/C), but radio works. Mouse Seatbelts don't work, but I have power windows. Stock Alarm also doesn't arm.
Can someone point me where I should start looking to root cause all these problems? I suspect they are all related.
BTW, I recently had the engine rebuilt & a new Engine Harness put in, if that helps any.
Thanks in advance!
#4
Originally Posted by j9fd3s' date='Aug 7 2003, 04:51 PM
1. check the codes, and see where that leads you
2. see if #1 helps
3. check the fuses, i think you're gonna find the meter fuse blown
mike
2. see if #1 helps
3. check the fuses, i think you're gonna find the meter fuse blown
mike
#7
OK, I'll do that tomorrow. Where is the wire harness ground located?
Also, I did have the Meter Fuse blown - thought I checked all of them. Anyway, I changed the Meter Fuse and the gauges came alive. But then the same fuse blew again when I started the car while I was out & about today.
What could be causing the same fuse to blow repeatedly?
Also, I did have the Meter Fuse blown - thought I checked all of them. Anyway, I changed the Meter Fuse and the gauges came alive. But then the same fuse blew again when I started the car while I was out & about today.
What could be causing the same fuse to blow repeatedly?
#8
I was thinking grounding issue. Do a search on grounding. I ran a heavy guage wire from a tranny bell housing bolt to the cars frame. With a stock setup there are a few things that need better grounding. You should find those things in a search.
Good luck!
Good luck!
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