Last post on Apr 15, 2013 at 8:56 AM
You are in the Mazda 626
What is this discussion about?
Mazda 626, Sedan
#1662 of 2544 CEL & surging mazda 626 2 lt 1994 atx
Apr 16, 2005 (5:15 pm)
When running car (parked) to warm it up pre testing, it is almost impossible to maintain 2000 rpm . Get near 2000 then surges to 2500 and then when I try to back off it drops back to 1500. I know people have mentioned surging here but only happens when not under load. Also CEL used to come on only under load (uphill accelerating etc) but since I have installed xternal trans cooler, now it comes on at lower speeds, stays on longer and occasionally stays on till I come to a full stop at a light. Any ideas ?
#1663 of 2544 Re: CEL & surging mazda 626 2 lt 1994 atx [mazda626atx]
by Mr_Shiftright HOST
Apr 16, 2005 (7:35 pm)
Some kind of fuel delivery issue...sounds like its running rich. Do you have somewhat disappointing fuel mileage on this car?
Apr 17, 2005 (7:11 am)
Thx Mr Shiftright. I am in NYC at the moment . I am going to have wife do a mileage check before I get back . This way if I need parts I will bring them with me when I go. I sense the mileage was dissapointing but I thought that was more due to my aggressive driving style. Plus I never really checked because gas is sold in liters there so I will have to pay attention and convert to gallons.What type of highway mileage should I expect . Also mixed city freeway driving. If its running rich what might it be ?
Apr 17, 2005 (11:58 am)
well it'll have to be diagnosed more carefully. There are no error codes from a Check Engine Light? Usually some sensor or valve gone awry and messing up the fuel mixture.
#1666 of 2544 Re: 94 626DX Weird Engine Problem! [man_hu]
Apr 17, 2005 (10:48 pm)
i also had the same problem but it only cost me $55.00 AT A MAZDA DEALER IN CHICAGO WILLIAMS ON THE SOUTH SIDE
#1667 of 2544 Re: BALL JOINTS [j626]
Apr 17, 2005 (11:04 pm)
THANKS BUT I CHANGED BOTH CONTROL ARMS , BUSHINGS WERE BAD BUT THANKS FOR THE INFO. I`LL GIVE MY MURRAY GUYS SOME SH-T
#1668 of 2544 Re: hard to say [Mr_Shiftright]
Apr 18, 2005 (8:05 am)
I get a 159 MAF and a 181 (lean condition) or 118 (ECT). I was rushed when I got these codes and it was my first time. I will have to read them again when I get back to Greece and I hope to get better at recognizing them. I was curious if the surging to 2500 then dropping to 1500 might confirm something, because I am considering buying parts here before I go back and have an opportunity to retest. I cleaned the MAf and checked all the wiring and will either buy a new one or wait till I get there and have a shop check it out with the info I now have.
Also I was wondering what sensor would become more sensitive by adding external tranny cooler as I mentioned in post #1642. ( The whole scoop on the car is in this post ) Its sorta tough cause I dont have a parts store there , so I have to sort of guess what I will buy here and take with me.
Thx again PGP
Apr 18, 2005 (10:09 am)
If we're going to get into codes, you should prepare your question exactly and then post it here,where it is more likely one of our visiting techs would see it.:
Shifty the Host
#1670 of 2544 626, 2000 Engine Service Light
Apr 19, 2005 (12:13 pm)
Hi there, do you have solution for code # 113 ?
There might be a few causes: I drove a couple of miles (about 20) with gas light on (according to the spec) and I changed air filter at the same day.
Thank you in advance!
Diagnostic Trouble Code Description
Trouble Code: P0113
Vehicle Qualification: Mazda 626
Description: Intake Air Temperature Circuit High Input
#1671 of 2544 Re: Idle problem [james_andrea]
Apr 19, 2005 (5:40 pm)
What was the check engine code? It could be a sensor in the transmission- 626s are notorious for tranny problems if it's an automatic. Did you check the fuel filter?
Also try cleaning the MAF sensor. Mike