I am in Johannesburg, South Africa, I seafoamed vehicle 3 weeks ago, after procedure very difficult to start, normal idling, normal driving...., thought injectors are playing around because it was overfueling,too vehicle to a "injector specialist", they stripped of the manifold, "cleaned the injectors", re-assembled everything, paid R2300, picked vehicle up, still very hard start and overfueling, next morning could not start vehicle at all, lots of white smoke, fuel smell and flooding, had it towed to a Mazda stealership, 4 days later, they said the "injector specialist"had the wires wrong on the injectors,paid R600, left stealership, 2hours later started vehicle, easy starting, but the rev's fluctuates between 2000 and 500 and then stalls....., phoned stealership, they told me sorry, they can not help anymore, except give new engine for R73000..., they referred me to another "rotary expert",had car towed to him seeing as it was flooded again...., 1 week later, cleaned ,calibrated injectors, re-placed MAF, picked up vehicle, NO idle anymore, does not want to idle at all, intermittently will be fine, lots of flatspots in powerband, low on power, paid in total R6700, car is far worse off, and everyone tells me its because the engine needs to be replaced,CAN THIS BE, please help, I am still adamant seeing as it was fine 4 weeks ago, it must be something else.....
Sorry, 2004 High Power, 88000kms, de-cat and exhaust system, NO CEL on dashboard......

 

Anyone out there?

 

1. You modded your injectors?
2. Do you have the updated starter?
3. Have you checked your coils or plugs?
4. Power loss throughout whole rpm range or low rpm only or above 7k only?

 

No mods on injectors, replaced spark plugs 4 weeks ago, no updated starter,whole rev range power loss and surges......
Coils have not been replaced yet, if a coil is dead or going, will the CEL light up or not, I am asking this because the rotary specialist told me this is the case and he thinks my coils are fine.......?

 

Failing coils normally will not light the idiot warning lamps. Only after bad spark has caused other problems does the computer try to tell you something is wrong.

 

After a seafoam, plus the floodings, you should replace your plugs as well. They're more than likely fouled. I'd replace the coils and wires while you're at it. If this doesn't help, I'd get a compression test done and go from there.

 

Usually a hunting idle is the neutral switch.

Search for that and then replace it.

 

check coils and catylictic (sp?) converter. My recommendations. I had similar symptoms when my cat melted (didnt have THAT much idle fluctuation however, just rough rough idle) and no power, felt like I was firing on one rotor.

 

Get a BHR ignition kit and check neutral switch like Razz1 suggested.

 

Thanks everyone for the advise, will tell stealership to replace coils, plugs, and to check neutral switch, will post as soon as I have feedback........

 

Update: No car yet, stealership have replaced solenoids for SSV, etc on UIM, told them to look at coils and neutral switch, I think they think I am stupid....., no car as yet, no Idle etc......
STUMPED.....