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rough idle, no boost, no smoke

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Old Jan 8, 2004 | 10:51 AM
  #1  
Leadfoot's Avatar
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From: Fast Lane
rough idle, no boost, no smoke

Yes yes yes, I have checked the MAP and it is connected (at both ends) . I hit 7k for a second, then since I began a hill run, I kept it in 4th at about 4.5k (about 1-1.5 miles), then shifted to 5th once I was at the top. Everything still running fine, then when I got off the freeway, rough idle. it gets better with higher rpms but at idle, it shakes, is rough, and I noticed no boost, however, there is no smoke either. I think, rather I hope it is a hose that I can't see yet without taking some parts off. I am hesitant to do a compression check just yet, but has anyone run into this before and found a fix. I remember a long time ago there were some problems like this, but a search revealed nothing (this could have been before the last hack attack way back)

The last engine I popped it was catastrophic and blew to pieces, took out both rotors, housing, turbos, etc.


Any suggestions would be appreciated. Engine has only 6.5k with all new parts and the PFC was tuned by experts, so I am hoping it is something with the turbo control system or something. -- yes I pulled the plugs and they look fine.

Thanks guys
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Old Jan 8, 2004 | 11:55 AM
  #2  
zayrx7's Avatar
the mazda zoom zoom store
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From: Columbus, Oh
Sounds like it's blown, I would do a compression test.
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Old Jan 8, 2004 | 12:46 PM
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From: Fast Lane
That's what I am thinking, but I am still keeping my hopes up about a hose or something. The first engine I popped took a long time to totaly die, and it would smoke and everything, but the strange thing is that it would idle fine, but then it blew due to an 30 second overheat when my thermostat went out all of a sudden.

any other suggestions?
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