marcz

This is a completely stock vehicle with 78,000 miles.
Tested at Mazda dealership a few years ago. Compression was said to be at bottom end of normal compression, especially rear rotor.
Engine also has leaky fuel injectors based on installation of a mazdatrix fuel line checkvalve part. I put this in a few years ago and it prevented flooding that occurred after running the engine. Two episodes of flooding did occur related to trying to start the car with a poorly charged battery.

My brother drove the vehicle from detroit to connecticut the other day without problem. However, while driving it home from work the following day, the car suddenly begin to require throttle to keep it running. He also noticed some smoke under the hood coming from the area of the oil filter. Although the car stalled several times, he drove it about 5miles in this condition. Each time it stalled, he was able to easily restart it.

Does this sound like blown seals, a vacuum problem, a fuel injector issue, etc? Is a mazda dealership likely to be able to fix these problems (I haven't had much confidence in them in the past)? Any
suggestions on a competent rotary engine specialist in the Connecticut area? Is it dangerous to drive the car in this condition (for example to the service shop)?

All help appreciated.
Thanks,
Marc

Syonyk

Step 1: Figure out what the smoke is from. There's a coolant line down there that likes to let go and leak. Is the coolant full?

Step 2: Make sure everything is connected. If the BAC is disconnected (the little blue connector over on the driver's side top of the manifold, connected to a round cylinder), it won't idle well at all.

Step 3: Compression test.

-=Russ=-

epitrochoider

fuel filter?

myfc3s

iTrader: (2)

Check your airflow meter and see if its connected. Also Check your air duct hose "from turbo to airflow meter". Hope that help's ---Robert

Dave_Noffsinger

I'm having a similar problem. Long story short, I sold our 87 RX7 at the begining of the year. I've ended up with the car back in my possesion again. When I picked it up I had to tow it to the house. It had been run completely out of gas. I put some new gas in and it does fire up but won't hold an idle, smokes, and feels like it's missing or something. The plugs are all new and I'm getting plenty of fire from the coil packs. I'm not 100% confident in my rotorary knowledge so some direction would be well appreciated. At first I was thinking it might have a bunch of junk sucked up in the fuel line but after reading this board some I'm wondering if there is something else going on. I've been checking to see if I've got a vacum leak or something since I noticed that it seemed to get slightly better when I had the air box open while it was running. So far all the lines don't appear to have any cracks or leaks though. The fuel filter has also been replaced. I was told by a guy to put a little transmission fluid down the throttle body and see if it made any diffrence. Is that a good idea?

Thanks,
Dave

87 RX7, GXL auto