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Help Request Answers
1993 Honda Civic 1.5L loud noise
here is a crazy one , head gasket was done and customer returned 2 days later and said car was making a loud noise under exclleration. car has n codes drives fine , runs fine , perfoms grate. under excelleration it sounds like a hoopdie with a cold air intake....		 View
1996 Honda Accord 2.2L Cuts out, Stall
Group I need help from the Honda Gods!! I am helping another shop with a problem on an Accord. The story goes like this. The customer came in for routine maintenance. This shop is a tire shop but went ahead and worked on it any way. They did a major tune-up. P...		 View
2000 Honda Accord 3.0L Power Steering Pump
Technician replaced water pump and timing components. Power steering pump was removed to access timing area. After all parts were installed, the power steering would not stop whinning due to air in system. Technician tried several ways to purge air from system...		 View
2001 Honda Odyssey 3.5L MIL Lamp on
Could plugged fuel injectors cause this PO171 lean code? We cannot fault the o2 sensors or mass air flow sensor or fuel pressure as all these are in spec. If we suspect plugged injectors is there a definitive test? Or do we just pressure clean them and see if ... Trouble codes: p0171 (Longterm fuel trim lean).		 View
1997 Isuzu Trooper 3.2L backup mode
customer complains of intermittent starts from stops with no power. educated customer of back up mode possibility and he confirms that moving shift lever to l range helps. also shutting down vehicle and restarting enables normal operation. i have confirmed on ...		 View
2004 Kia CARNIVAL 2.5L Poor Idle Quality
vehicle came in with poor idle. no fault codes present. seemed excessive injector duration on bank 1. oxygen sensor was replaced. also wiring harness plugs for o2 sensor have been hard wired at sensor and at main plug on top of motor. the only thing that seems...		 View
2002 Lexus ES 300 3.0L dynometer
having problems with the electronic throttle motor.Been very hard for me to keep these things on the dyno.What I mean by that I cant seem to keep a constant speed.Usually have to abort the test.Any other smog technicians have this problem.If so I could use all...		 View
1989 Mazda MPV 2.6L MIL Lamp on
This car sets code 3 anywhere from 5 min. to 20 sec. after starting. Verified a good G signal (0 to 5 volt square wave) at the dist and ecm when the cel comes on. Sent ecm into NPC for testing and no problems were found. The tech line said either the G signal ... Trouble codes: 3 (G Signal).		 View
1993 Mazda MX-5 Miata 1.6L high idle warm
this mazda miata idles at 1500 rpm when warms up i have checked for vaccum leaks replaced iac checked thermal air valve. coolant tempsensor and replaced o2 due to code 17 o2 now is working fine. set timing cleaned throttle body and screwed idle adjustment all ...		 View
1999 Mazda Millenia 2.3L Cuts out
when driving the vehicle i cannot passed 2500 rpm,it cuts out like rev limiter kick in.there was a previus code for speed sensor.i clear the code and vehicle was fine for 3 days.came back same problem with no code.help would be great anybody knows these miller...		 View
2000 Mazda Protege 1.8L timing belt tensioner
vehicle was towed in as a no start found timing belt had jumped time.removed cover and found tensioner spring in camshaft pulley.replaced tensioner,spring,idler pulley and belt.all data procedure to install tensioner was a little vague but did install as per a...		 View
2003 Mitsubishi Eclipse 2.4L Timing belt
Vehicle came in for factory maintance timing belt. Put the cylinder # 1 top dead center marked it and took off the timing belt and balance shaft belt put it back on same place started it up nothing. Moved both cam and crankshafts a tooth up and down even follo...		 View
2004 Mitsubishi Lancer 2.4L Transmission
Ok I have a good one here I have replaced the mentioned components and I get a squeak type noise not real loud but enough to hear from inside the car if I tough clutch pedal it will go away and I mean touch not depress, like a few pounds of pressure will do it...		 View
1998 Nissan Maxima 3.0L Surge, Stall
Hello Nissan Techs: I have this 98 maxima with DTC P1335 with no description. This one come in with no start condition. Verified starter failure, and replaced. Released car and cust called that MIL was on. Before customer got back to shop the car stalled with ... Trouble codes: P1335.		 View
1997 Toyota Camry 2.2L balance shafts
Hello Toyota techs, I recently closed this case that I thought was fixed. It is back with a vibration concern now. This car initially had a noise coming from the balance shafts which I then removed based on replies from IATN members. The car seemed ok, but the...		 View
2000 Toyota Land Cruiser 4.7L engine starting
This is a mint land cruire, auto trany v8 when starting the engine starts right up for 1-2 seconds thens stalls, on second try it starts and runs mint. good gas milage,quite smooth and lots of powere(runs like new) problem mainly happens after 20 minut or long...		 View
2001 Toyota Sequoia 4.7L 4x4
Thanks in advance for any help. This Toyota came in after the dealer scared the life out of the customer. They told the cust that the transfer case motor was non functional and the front diff actuator was weak. We confirmed the case motor, replaced it and the ...		 View
2006 Toyota Matrix 1.8L Cuts out, Misfire, MIL Lamp on
I have this Matrix that belongs to a fleet. The check engine light would come back on after a few weeks of driving. P0171. We replaced the MAF sensor about a month ago. Ran vehicle through drive cycle and readings look fine at the time. Now the light is back o... Trouble codes: P0171 (System too lean bank 1).		 View

Fixes & Summaries for Asian
Fix/Summary Answers
1998 Honda Accord 2.3L Electronic
Thanks to all who responded and quite quickly at that. Situation with this vehicle was that I intended to buy it. The owner backed out of the deal and plans to purchase a transmission to cure the problem. Your help was much appreciated though and I am sure the...		 15
2000 Honda CR-V 2.0L Poor Idle Quality, Misfire, MIL Lamp on
I finally got the vehicle back in here, customers daughter had taken it back to college. The fix was adjusting the valves as many had mentioned. I have run into other vehicles long ago having this problem but nothing this late. I appreciate all the replies and... Trouble codes: p0301 (misfire cyl 1 detected), p0302 (misfire cyl 2 detected), p0303 (misfire cyl 3 detected), p0304 (misfire cyl 4 detected), p0300 (Random misfire detected).		 24
2001 Honda Civic 1.7L No Start
Thanks for the quick responses!!! Some said to check the distributor for rotation but this vehicle is distributorless. The key immobilizer did not like the key the owner had. It was cut & programmed at a Honda dealer about 6 months earlier & had worked fine un...		 16
2002 Isuzu Rodeo 3.2L No Start
Well, I'd like to thank the 3 guys that replied. This one should have a yellow post it attached to it. After a long and difficult battle we have won the war! We had the vehicle in the shop and it runs when it was warm. We did an old fashion 'wiggle' test and i...		 3
1992 Lexus LS 400 4.0L p/s pump
Thanks to who all replied. Changed ps rack with dealer new made noise go away but had no assist. So we installed new dealer pump all works great.. Thanks again		 14
1997 Mazda 626 2.5L 3rd & 4th
We suspect that our problem is internal in the 3-4 clutch. We performed pinpoint testing at the control module behind the console to verify that the solenoids were being controlled properly. Knowing that our slipping would start just after the solenoids were...		 6
1994 Nissan Altima 2.4L idles fine pooraccel
Thanks to everyone... After checking and going over all necc. tests the computer was the problem.. when cust. picked up car said last year had water leak fixed from sun roof.. inside was not wet due to drought N.C.		 6
1999 Nissan Altima 2.4L No Start
Many thanks for all the speedy replies! The lower timing chain on this nissan did in-fact jump time. It looks as if the tensioner had failed as all of the chain guides are intact and in good shape. The customer has decided to go with a low mileage used engine ...		 15
2005 Nissan Sentra 1.8L MIL Lamp on
Hi Guys Not much help from the Nissan guys But seemed to have solved the problem Replaced ECU and customer now driving for a week and no light. Taken as a fix thanks to those that did respond Trouble codes: p1137 (Swirl valve), P1138 (Swirl Valve Voltage out of range), P1132 (Swirl Valve incorrct voltage).		 3
1992 Toyota Paseo 1.5L Excessive Emissions, Poor Fuel Economy
Well, the Paseo is fixed. All the replies were helpful to me- they really make you think again. Mark from Pennsylvania got my brain working when he suggested that the injectors were wrong. Since everything (AND I MEAN EVERYTHING) else checked out good, ecu wor...		 12
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