I recently replaced the motor in my 89 Mazda 626 with a motor from a 91. The car runs great but I get an idle surge when the car is cold. After the car warms up sometimes it idles fine and other times it idles real low and wants to stall? What could be causing the idle surge? I have a new radiator and have no overheating issues.
2006-10-04 04:07:20 · 6 answers · asked by brianriley_1999 1 in Cars & Transportation ➔ Maintenance & Repairs
Mazdas have had that charecteristic since they went on the market long ago. The reason for that is that to get everything to work properly, Mazda operates at a much higher temperature than any other cars. No need to fear. I also have a Mazda 626 and have consulted the pros at the dealership. To correct the low idiling, Keep the injectors clean by having them looked at periodically. Good fuel additives can be very helpful.
2006-10-04 04:14:16 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Mazda 626 Motor
2016-10-18 11:21:16 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Funny you should say that. My boyfriend has a '95 Mazda 626, and its been to the garage several times. I think Mazdas from the '90s just do that. It will even shut off from idling too low, but it runs great. He gets the idle surge in the winter, too. I seriously think its just the Mazdas from that time period. Its never left us stranded or anything. Whereas my new VW, which I love, has gone so far as to lock me inside, couldn't even get out with the manual handle. Turned out the alternator destroyed and malfunctioned nearly everything! The state police had to rescue me. No I am not the star of the BlondeStar commercial. Ask Montville Ct state police, they couldn't even believe it. So I trust the Mazda more, needless to say. Just chalk it up to fussiness I suppose!
2006-10-04 04:18:24 · answer #3 · answered by Sweet! 4 · 0⤊ 0⤋
There may be a difference in the idle sensors on that engine. The computer is searching for the correct idle position. It uses rpm and an idle control valve to determine idle. Make sure that all the wiring is hooked up properly and not corroded.
There should be a base idle screw on the intake near the throttle cable, that can be adjusted. It may be as simple as adjusting the base idle.
Hope this helps.
Master tech 40 yrs.
2006-10-04 04:16:49 · answer #4 · answered by Cal 5 · 0⤊ 0⤋
i own a 91' mazda 626 and frequently I truly have a similar concern...the in elementary words answer I truly ought to furnish you is to bypass have your automobile checked because i did that and mine has been operating high quality
2016-12-04 06:26:58 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Throttle position sensor or if by chance it is carburated, it would need adjusted (choke issue)
2006-10-04 04:16:24 · answer #6 · answered by Jeep Driver 5 · 0⤊ 0⤋