Tag: ECU

By on October 28, 2015


Joel writes:

Hello Sajeev,

I am having an issue with my 2008 Honda Accord EX 5MT. I bought it with about 90,000 km (less than 60,000 miles) from a Honda dealer nine months ago. It was in good shape but was not babied. On the upshifts, there is a momentary … what could I call it … overrun? overspeed? Clutch in, accelerator off, the revs don’t drop right away; they almost seem to increase, but only for a moment.

On the downshifts, blipping requires more than a stab; I would call it a prod, a sustained stab of the accelerator.

(Read More…)

By on October 2, 2015


While working on a story about some very old cars, I stumbled upon something relevant to the latest big story in the automotive world.

I ran into a Model T collector who’s also a powertrain engineer for Ford. Seizing the opportunity, I asked him if he could tell me what he was working on (sometimes they say no). He said that he was responsible for developing computerized engine controls. Because of that expertise, I started to ask him some questions about the software program that Volkswagen apparently used to cheat on the EPA’s diesel emissions testing.

What he was willing to say and what he wouldn’t say intrigued me. (Read More…)

By on July 16, 2014

(photo courtesy: eurotuner.com)

Evan writes:

Sajeev (Sanjeev need not apply),

My previous car was a MKV GTI that I, in my youthful excitement for all things automotive, chipped. I shelled out the big dollars (on sale) for the name brand company that had a good reputation as being conservative with their programming.

And yet, that car was nothing but trouble from that point on. Sure, I could have turned off the extra horsepower with a couple minutes time in a parking lot, but once you get that extra power going back is really hard. As a nonsmoker, I understand how hard quitting smoking must be now. I just couldn’t do it. So I lived with a car that ate a variety of parts all the way until I sold it, reset and locked into stock mode.

(Read More…)

By on January 18, 2012

TTAC Commentator Tree Trunk writes:

Hello Sajeev,

I comment on TTAC as Tree Trunk from the frozen tundra in interior Alaska and am looking for advice on how to deal with an out of control repair of an old beater. I have a ’95 Isuzu Rodeo with 130K that until recently had been a pretty low maintenance, reliable ride.

Out of the blue the check engine light came on and the engine stalled.  A handy friend checked all obvious things to get it running again without success.  It would start up run for a few min before reving wildly and then die.  Luckily I thought, it broke down close to a reputable shop (NAPA certified) so we towed it there.

Seven weeks and two thousand dollars, not to mention the rental car cost I am back at square one. First they diagnosed bad PCM, a rebuild unit was in five weeks later, two weeks behind schedule.  I made it half a mile down the road before it stalled again.

This time around it was supposedly a slack timing belt hitting the crankshaft sensor causing the engine to stall. Week and another thousand dollars later, after first ordering the wrong parts and then not all the needed parts the engine started up, but wouldn’t you know it stalled again.

In hindsight, I should have scrapped it the moment it broke down.  But short of finding a time machine that is not an option.

Now I am waiting the next call from the shop and need advice from you and the best and brightest. It seems obvious that the one or both of the diagnostics were faulty and some third thing is causing the stalling.

What do I do, keep paying with a smile, demand a full repair free of charge or something in-between?

Sajeev answers: (Read More…)

By on March 18, 2010

Toyota is a customer centric company. It now considers a recall that will please the vociferous crowd that thinks something is wrong with Toyota’s engine computer. Reuters reports that Toyota is discussing with NHTSA whether and how they should fix nearly 1.2 million Corolla and Matrix models. They are at risk of unintended stoppage. They might stall out because of flaws in their computer. (Read More…)

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